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 vulnerability cve CVE-2026-104433 known 2026-10-03

https://nvd.nist.gov/vuln/detail/CVE-2026-104433

Properties

cvss	7.5 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 12:15 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" } ] } }
product	Mooncake 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 12:15 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" } ] } }
status	Received receipt Source NVD Its words `Received` Read by `field:cve.vulnStatus` Said since 2026-10-03 06:07 UTC Last answered 2026-10-04 12:15 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" } ] } }
vendor	kvcache-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 12:15 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" } ] } }

Text

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.