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OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests...

zetlyn/cve-ghsa vulnerability ghsa GHSA-mf8f-w84m-x4gc cve CVE-2026-105119 known 2026-10-03

https://github.com/advisories/GHSA-mf8f-w84m-x4gc

Properties

cvss6.8
receipt
Source
GitHub advisories
Its words
6.8
Read by
field:cvss.score
Said since
2026-10-03 18:07 UTC
Last answered
2026-10-06 13:46 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-105119",
  "cvss": {
    "score": 6.8,
    "vector_string": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 6.8,
      "vector_string": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
    },
    "cvss_v4": {
      "score": 7.6,
      "vector_string": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/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-285",
      "name": "Improper Authorization"
    }
  ],
  "description": "OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is exactly code, so codes issued through OpenID Connect hybrid flows (code token, code id_token, code token id_token) carry no bound challenge. An attacker who intercepts such a code can redeem it for a public client's tokens with any non-empty code_verifier.",
  "ghsa_id": "GHSA-mf8f-w84m-x4gc",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-mf8f-w84m-x4gc",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-mf8f-w84m-x4gc"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-105119"
    }
  ],
  "nvd_published_at": "2026-10-03T14:16:38Z",
  "published_at": "2026-10-03T15:30:25Z",
  "references": [
    "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-5p2f-7vcr-6vfh",
    "https://nvd.nist.gov/vuln/detail/CVE-2026-105119",
    "https://www.vulncheck.com/advisories/openam-before-16.1.3-pkce-enforcement-bypass-via-oauth-2.0-hybrid-flows",
    "https://github.com/advisories/GHSA-mf8f-w84m-x4gc"
  ],
  "repository_advisory_url": null,
  "severity": "high",
  "source_code_location": "",
  "summary": "OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests...",
  "type": "unreviewed",
  "updated_at": "2026-10-03T15:30:33Z",
  "url": "https://api.github.com/advisories/GHSA-mf8f-w84m-x4gc",
  "vulnerabilities": [],
  "withdrawn_at": null
}
cweCWE-285
receipt
Source
GitHub advisories
Its words
CWE-285
Read by
field:cwes[].cwe_id
Said since
2026-10-03 18:07 UTC
Last answered
2026-10-06 13:46 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-105119",
  "cvss": {
    "score": 6.8,
    "vector_string": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 6.8,
      "vector_string": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
    },
    "cvss_v4": {
      "score": 7.6,
      "vector_string": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/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-285",
      "name": "Improper Authorization"
    }
  ],
  "description": "OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is exactly code, so codes issued through OpenID Connect hybrid flows (code token, code id_token, code token id_token) carry no bound challenge. An attacker who intercepts such a code can redeem it for a public client's tokens with any non-empty code_verifier.",
  "ghsa_id": "GHSA-mf8f-w84m-x4gc",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-mf8f-w84m-x4gc",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-mf8f-w84m-x4gc"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-105119"
    }
  ],
  "nvd_published_at": "2026-10-03T14:16:38Z",
  "published_at": "2026-10-03T15:30:25Z",
  "references": [
    "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-5p2f-7vcr-6vfh",
    "https://nvd.nist.gov/vuln/detail/CVE-2026-105119",
    "https://www.vulncheck.com/advisories/openam-before-16.1.3-pkce-enforcement-bypass-via-oauth-2.0-hybrid-flows",
    "https://github.com/advisories/GHSA-mf8f-w84m-x4gc"
  ],
  "repository_advisory_url": null,
  "severity": "high",
  "source_code_location": "",
  "summary": "OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests...",
  "type": "unreviewed",
  "updated_at": "2026-10-03T15:30:33Z",
  "url": "https://api.github.com/advisories/GHSA-mf8f-w84m-x4gc",
  "vulnerabilities": [],
  "withdrawn_at": null
}
severityhigh
From 7.0 to 8.9.
receipt
Source
GitHub advisories
Its words
high
Read by
field:severity
Said since
2026-10-03 18:07 UTC
Last answered
2026-10-06 13:46 UTC
Original
open at the source
What the source handed over
{
  "comments": 0,
  "credits": [],
  "cve_id": "CVE-2026-105119",
  "cvss": {
    "score": 6.8,
    "vector_string": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
  },
  "cvss_severities": {
    "cvss_v3": {
      "score": 6.8,
      "vector_string": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N"
    },
    "cvss_v4": {
      "score": 7.6,
      "vector_string": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/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-285",
      "name": "Improper Authorization"
    }
  ],
  "description": "OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is exactly code, so codes issued through OpenID Connect hybrid flows (code token, code id_token, code token id_token) carry no bound challenge. An attacker who intercepts such a code can redeem it for a public client's tokens with any non-empty code_verifier.",
  "ghsa_id": "GHSA-mf8f-w84m-x4gc",
  "github_reviewed_at": null,
  "html_url": "https://github.com/advisories/GHSA-mf8f-w84m-x4gc",
  "identifiers": [
    {
      "type": "GHSA",
      "value": "GHSA-mf8f-w84m-x4gc"
    },
    {
      "type": "CVE",
      "value": "CVE-2026-105119"
    }
  ],
  "nvd_published_at": "2026-10-03T14:16:38Z",
  "published_at": "2026-10-03T15:30:25Z",
  "references": [
    "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-5p2f-7vcr-6vfh",
    "https://nvd.nist.gov/vuln/detail/CVE-2026-105119",
    "https://www.vulncheck.com/advisories/openam-before-16.1.3-pkce-enforcement-bypass-via-oauth-2.0-hybrid-flows",
    "https://github.com/advisories/GHSA-mf8f-w84m-x4gc"
  ],
  "repository_advisory_url": null,
  "severity": "high",
  "source_code_location": "",
  "summary": "OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests...",
  "type": "unreviewed",
  "updated_at": "2026-10-03T15:30:33Z",
  "url": "https://api.github.com/advisories/GHSA-mf8f-w84m-x4gc",
  "vulnerabilities": [],
  "withdrawn_at": null
}

Text

OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests... OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is exactly code, so codes issued through OpenID Connect hybrid flows (code token, code id_token, code token id_token) carry no bound challenge. An attacker who intercepts such a code can redeem it for a public client's tokens with any non-empty code_verifier.