GHSA-4428-9RH9-R27G

Vulnerability from github – Published: 2026-01-19 18:30 – Updated: 2026-06-30 03:35
VLAI
Details

An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.

Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
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{
  "affected": [],
  "aliases": [
    "CVE-2026-22797"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-290"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-19T18:16:04Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in OpenStack keystonemiddleware 10.5 through 10.7 before 10.7.2, 10.8 and 10.9 before 10.9.1, and 10.10 through 10.12 before 10.12.1. The external_oauth2_token middleware fails to sanitize incoming authentication headers before processing OAuth 2.0 tokens. By sending forged identity headers such as X-Is-Admin-Project, X-Roles, or X-User-Id, an authenticated attacker may escalate privileges or impersonate other users. All deployments using the external_oauth2_token middleware are affected.",
  "id": "GHSA-4428-9rh9-r27g",
  "modified": "2026-06-30T03:35:26Z",
  "published": "2026-01-19T18:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22797"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:3402"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:3855"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:4434"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:5133"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:5907"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-22797"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430879"
    },
    {
      "type": "WEB",
      "url": "https://launchpad.net/bugs/2129018"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22797.json"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/01/16/9"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/01/15/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/01/16/2"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/01/16/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/01/16/9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}



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