GHSA-339W-3HQM-9PJC

Vulnerability from github – Published: 2026-05-28 18:30 – Updated: 2026-07-02 18:37
VLAI?
Summary
Casdoor doesn't verify that a JWT used for token exchange is still active
Details

Casdoor versions 2.362.0 and earlier do not verify that a JWT used for token exchange is still active. The GetTokenExchangeToken() function in object/token_oauth.go validates the JWT signature and parses its claims, but never queries the Token table to verify whether the subject token has been revoked or invalidated. Because the revocation check is entirely absent, administrators are unable to terminate active sessions or revoke compromised tokens.

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/casdoor/casdoor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.1000.1-0.20260321120606-239e8bd69487"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-9097"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-298"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-02T18:37:32Z",
    "nvd_published_at": "2026-05-28T17:16:34Z",
    "severity": "CRITICAL"
  },
  "details": "Casdoor versions 2.362.0 and earlier do not verify that a JWT used for token exchange is still active. The GetTokenExchangeToken() function in object/token_oauth.go validates the JWT signature and parses its claims, but never queries the Token table to verify whether the subject token has been revoked or invalidated. Because the revocation check is entirely absent, administrators are unable to terminate active sessions or revoke compromised tokens.",
  "id": "GHSA-339w-3hqm-9pjc",
  "modified": "2026-07-02T18:37:32Z",
  "published": "2026-05-28T18:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9097"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/casdoor/casdoor"
    },
    {
      "type": "WEB",
      "url": "https://kb.cert.org/vuls/id/780781"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Casdoor doesn\u0027t verify that a JWT used for token exchange is still active"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.