Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.

cve CVE-2026-104433 2 sources, 2 claims · Watch

NVD writes:
Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server. the claim

What it is to other things

In words only, so not counted until a person confirms one:

affectskvcache_ai/mooncake
NVD says “kvcache-ai · Mooncake”
made_bykvcache_ai
NVD says “kvcache-ai”

What each source says

PropertySourceSaidMeans here
Cvss
cvss
GitHub advisories7.5
receipt
Source
GitHub advisories
Its words
7.5
Read by
field:cvss.score
Said since
2026-10-03 06:04 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-104433",
  "cvss": {
    "score": 7.5,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 7.5,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
    },
    "cvss_v4": {
      "score": 8.7,
      "vector_string": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-125",
      "name": "Out-of-bounds Read"
    }
  ],
  "description": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.",
  "ghsa_id": "GHSA-ccgr-wx5m-4h7g",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-ccgr-wx5m-4h7g",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-ccgr-wx5m-4h7g"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-104433"
    }
  ],
  "nvd_published_at": "2026-10-03T00:16:35Z",
  "published_at": "2026-10-03T00:31:14Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-104433",
    "https://github.com/kvcache-ai/Mooncake/issues/4452",
    "https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4",
    "https://github.com/kvcache-ai/Mooncake",
    "https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring",
    "https://github.com/advisories/GHSA-ccgr-wx5m-4h7g"
  ],
  "repository_advisory_url": null,
  "severity": "high",
  "source_code_location": "",
  "summary": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the...",
  "type": "unreviewed",
  "updated_at": "2026-10-03T00:31:21Z",
  "url": "https://api.github.com/advisories/GHSA-ccgr-wx5m-4h7g",
  "vulnerabilities": [],
  "withdrawn_at": null
}
—
Cvss
cvss
NVD7.5
receipt
Source
NVD
Its words
7.5
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-10-03 06:07 UTC
Last answered
2026-10-04 06:13 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "packageURL": "pkg:pypi/mooncake-transfer-engine",
            "product": "Mooncake",
            "vendor": "kvcache-ai",
            "versions": [
              {
                "lessThan": "0.3.12",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "status": "unaffected",
                "version": "0.3.12",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "disclosure@vulncheck.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server."
      }
    ],
    "id": "CVE-2026-104433",
    "lastModified": "2026-10-03T00:16:35.253",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6,
          "source": "disclosure@vulncheck.com",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
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            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "disclosure@vulncheck.com",
          "type": "Secondary"
        }
      ]
    },
    "published": "2026-10-03T00:16:35.253",
    "references": [
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake/issues/4452"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring"
      }
    ],
    "sourceIdentifier": "disclosure@vulncheck.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          }
        ],
        "source": "disclosure@vulncheck.com",
        "type": "Primary"
      }
    ]
  }
}
—
Cwe
cwe
GitHub advisoriesCWE-125
receipt
Source
GitHub advisories
Its words
CWE-125
Read by
field:cwes[].cwe_id
Said since
2026-10-03 06:04 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-104433",
  "cvss": {
    "score": 7.5,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 7.5,
      "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
    },
    "cvss_v4": {
      "score": 8.7,
      "vector_string": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
    }
  },
  "cwes": [
    {
      "cwe_id": "CWE-125",
      "name": "Out-of-bounds Read"
    }
  ],
  "description": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.",
  "ghsa_id": "GHSA-ccgr-wx5m-4h7g",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-ccgr-wx5m-4h7g",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-ccgr-wx5m-4h7g"
    },
    {
      "type": "CVE",
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    }
  ],
  "nvd_published_at": "2026-10-03T00:16:35Z",
  "published_at": "2026-10-03T00:31:14Z",
  "references": [
    "https://nvd.nist.gov/vuln/detail/CVE-2026-104433",
    "https://github.com/kvcache-ai/Mooncake/issues/4452",
    "https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4",
    "https://github.com/kvcache-ai/Mooncake",
    "https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring",
    "https://github.com/advisories/GHSA-ccgr-wx5m-4h7g"
  ],
  "repository_advisory_url": null,
  "severity": "high",
  "source_code_location": "",
  "summary": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the...",
  "type": "unreviewed",
  "updated_at": "2026-10-03T00:31:21Z",
  "url": "https://api.github.com/advisories/GHSA-ccgr-wx5m-4h7g",
  "vulnerabilities": [],
  "withdrawn_at": null
}
—
Product
product
NVDMooncake
receipt
Source
NVD
Its words
Mooncake
Read by
field:cve.affected[].affectedData[].product
Said since
2026-10-03 06:07 UTC
Last answered
2026-10-04 06:13 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "packageURL": "pkg:pypi/mooncake-transfer-engine",
            "product": "Mooncake",
            "vendor": "kvcache-ai",
            "versions": [
              {
                "lessThan": "0.3.12",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "status": "unaffected",
                "version": "0.3.12",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "disclosure@vulncheck.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server."
      }
    ],
    "id": "CVE-2026-104433",
    "lastModified": "2026-10-03T00:16:35.253",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          "source": "disclosure@vulncheck.com",
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      ],
      "cvssMetricV40": [
        {
          "cvssData": {
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            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
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            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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    ],
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        "description": [
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    ]
  }
}
—
Severity
severity
GitHub advisorieshigh
From 7.0 to 8.9.
receipt
Source
GitHub advisories
Its words
high
Read by
field:severity
Said since
2026-10-03 06:04 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-104433",
  "cvss": {
    "score": 7.5,
    "vector_string": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
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    }
  },
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      "cwe_id": "CWE-125",
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  "html_url": "https://github.com/advisories/GHSA-ccgr-wx5m-4h7g",
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    "https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring",
    "https://github.com/advisories/GHSA-ccgr-wx5m-4h7g"
  ],
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  "vulnerabilities": [],
  "withdrawn_at": null
}
—
Status
status
NVDReceived
receipt
Source
NVD
Its words
Received
Read by
field:cve.vulnStatus
Said since
2026-10-03 06:07 UTC
Last answered
2026-10-04 06:13 UTC
Original
open at the source
What the source handed over
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            "packageURL": "pkg:pypi/mooncake-transfer-engine",
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            "vendor": "kvcache-ai",
            "versions": [
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              }
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        ],
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      }
    ],
    "cveTags": [],
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      }
    ],
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    "lastModified": "2026-10-03T00:16:35.253",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6,
          "source": "disclosure@vulncheck.com",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "disclosure@vulncheck.com",
          "type": "Secondary"
        }
      ]
    },
    "published": "2026-10-03T00:16:35.253",
    "references": [
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake/issues/4452"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring"
      }
    ],
    "sourceIdentifier": "disclosure@vulncheck.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          }
        ],
        "source": "disclosure@vulncheck.com",
        "type": "Primary"
      }
    ]
  }
}
—
Vendor
vendor
NVDkvcache-ai
receipt
Source
NVD
Its words
kvcache-ai
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-10-03 06:07 UTC
Last answered
2026-10-04 06:13 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "packageURL": "pkg:pypi/mooncake-transfer-engine",
            "product": "Mooncake",
            "vendor": "kvcache-ai",
            "versions": [
              {
                "lessThan": "0.3.12",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              },
              {
                "status": "unaffected",
                "version": "0.3.12",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "disclosure@vulncheck.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server."
      }
    ],
    "id": "CVE-2026-104433",
    "lastModified": "2026-10-03T00:16:35.253",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6,
          "source": "disclosure@vulncheck.com",
          "type": "Primary"
        }
      ],
      "cvssMetricV40": [
        {
          "cvssData": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "availabilityRequirement": "NOT_DEFINED",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "exploitMaturity": "NOT_DEFINED",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "NOT_DEFINED",
            "modifiedAttackRequirements": "NOT_DEFINED",
            "modifiedAttackVector": "NOT_DEFINED",
            "modifiedPrivilegesRequired": "NOT_DEFINED",
            "modifiedSubAvailabilityImpact": "NOT_DEFINED",
            "modifiedSubConfidentialityImpact": "NOT_DEFINED",
            "modifiedSubIntegrityImpact": "NOT_DEFINED",
            "modifiedUserInteraction": "NOT_DEFINED",
            "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
            "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
            "modifiedVulnIntegrityImpact": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "source": "disclosure@vulncheck.com",
          "type": "Secondary"
        }
      ]
    },
    "published": "2026-10-03T00:16:35.253",
    "references": [
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake/commit/c142b40590259360196d8e504b2193382529e7b4"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://github.com/kvcache-ai/Mooncake/issues/4452"
      },
      {
        "source": "disclosure@vulncheck.com",
        "url": "https://www.vulncheck.com/advisories/mooncake-before-0.3.12-out-of-bounds-read-via-p2p-handshake-readstring"
      }
    ],
    "sourceIdentifier": "disclosure@vulncheck.com",
    "vulnStatus": "Received",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-125"
          }
        ],
        "source": "disclosure@vulncheck.com",
        "type": "Primary"
      }
    ]
  }
}
—

vulnerability

Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the readString function of include/common.h that allows unauthenticated attackers to crash the service by sending a zero-length handshake frame. Attackers can connect to the handshake port listening on all interfaces and send an eight-byte frame to terminate the hosting process, such as an SGLang inference server.
zetlyn/cve-nvd · 2026-10-03
cvss 7.5 product Mooncake status Received vendor kvcache-ai source
Mooncake transfer engine before 0.3.12 contains an out-of-bounds read vulnerability in the...
zetlyn/cve-ghsa · 2026-10-03
cvss 7.5 cwe CWE-125 severity high source