{"id":"CVE-2026-25660","aliases":["GHSA-4v9x-cqc5-j645","PYSEC-2026-317"],"url":"https://o3.security/vulnerability/CVE-2026-25660","summary":"Authentication bypass for certain API calls","details":"### Summary\nAuthentication bypass occurs when the URL ends with Authentication with certain function calls. This bypass allows assigning arbitrary permissions to any existing user in CodeChecker.\n\n### Details\n\nThe following functions are affected under the Authentication endpoint: `getAuthorisedNames`, `getPermissionsForUser`, `hasPermission`, `addPermission`, and `removePermission`.\n\nThe vulnerability allows unauthenticated users to execute these function calls with arbitrary arguments.\nIn the logs, the exploit shows as follows:\n```\n[INFO 2026-04-23 21:23] - 127.0.0.1:42654 -- [Anonymous] POST /v6.67/Authentication@getAuthorisedNames\n[INFO 2026-04-23 21:23] - 127.0.0.1:42654 -- [Anonymous] POST /v6.67/Authentication@addPermission\n```\n\n### Impact\nAn attacker with a CodeChecker user can effectively acquire superuser permissions by calling these endpoints.\n\n### Patch\nA patch is available at https://github.com/Ericsson/codechecker/releases/tag/v6.27.4.","published":"2026-04-24T13:10:26.171Z","modified":"2026-08-12T03:51:14.346360011Z","cvss":null,"epss":{"score":0.00447,"percentile":0.36995,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"codechecker","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25660.json"},{"type":"ADVISORY","url":"https://github.com/Ericsson/codechecker/security/advisories/GHSA-4v9x-cqc5-j645"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25660"},{"type":"PACKAGE","url":"https://github.com/Ericsson/codechecker"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:14.346360011Z"}}