{"id":"CVE-2026-25660","aliases":["EUVD-2026-25417","GHSA-4v9x-cqc5-j645","PYSEC-2026-317"],"status":"published","title":"Authentication bypass for certain API calls","description":"CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. \nAuthentication bypass occurs when the URL ends with Authentication with certain function calls.  This bypass allows assigning arbitrary permission to any user existing in CodeChecker.\n\nThis issue affects CodeChecker: through 6.27.3.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00447,"percentile":0.39131,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-290","CWE-863"],"published":"2026-04-24T13:10:26Z","modified":"2026-10-28T02:30:59Z","affected":[{"source":"ghsa","ecosystem":"PyPI","package":"codechecker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.27.3"}]}]},{"source":"osv","ecosystem":"PyPI","package":"codechecker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.27.3"}]}],"versions":["6.16.0","6.16.0a1","6.17.0","6.18.0","6.18.1","6.18.2","6.19.0","6.19.1","6.20.0","6.20.0rc1","6.21.0","6.21.0rc1","6.22.0","6.22.0rc1","6.22.1","6.22.2","6.22.2.post1","6.23.0","6.23.0rc2","6.23.1","6.24.0","6.24.1","6.24.2","6.24.4","6.25.0","6.25.1","6.26.0","6.26.1","6.26.2","6.27.1","6.27.3"]},{"source":"osv","ecosystem":"PyPI","package":"codechecker","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.27.3"}]}],"versions":["6.16.0","6.16.0a1","6.17.0","6.18.0","6.18.1","6.18.2","6.19.0","6.19.1","6.20.0","6.20.0rc1","6.21.0","6.21.0rc1","6.22.0","6.22.0rc1","6.22.1","6.22.2","6.22.2.post1","6.23.0","6.23.0rc2","6.23.1","6.24.0","6.24.1","6.24.2","6.24.4","6.25.0","6.25.1","6.26.0","6.26.1","6.26.2","6.27.1","6.27.3"]}],"products":[{"vendor":"ericsson","product":"codechecker"}],"references":[{"url":"https://github.com/Ericsson/codechecker/security/advisories/GHSA-4v9x-cqc5-j645","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25660","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/codechecker/PYSEC-2026-317.yaml","tags":["web"]},{"url":"https://pypi.org/project/codechecker","tags":["web","package"]},{"url":"https://github.com/advisories/GHSA-4v9x-cqc5-j645","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25660.json","tags":["advisory"]},{"url":"https://github.com/Ericsson/codechecker","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-25660","title":"Authentication bypass for certain API calls","description":"CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. \nAuthentication bypass occurs when the URL ends with Authentication with certain function calls.  This bypass allows assigning arbitrary permission to any user existing in CodeChecker.\n\nThis issue affects CodeChecker: through 6.27.3.","status":"published","published":"2026-04-24T13:10:26.171Z","modified":"2026-04-24T13:51:11.174Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical","assessor":"cna"}],"cwes":["CWE-290","CWE-863"],"updated_at":"2026-11-02T13:41:30.911526Z"}],"euvd":[{"id":"EUVD-2026-25417","description":"CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. \nAuthentication bypass occurs when the URL ends with Authentication with certain function calls.  This bypass allows assigning arbitrary permission to any user existing in CodeChecker.\n\nThis issue affects CodeChecker: through 6.27.3.","status":"published","published":"2026-04-24T13:10:26Z","modified":"2026-04-24T13:51:11Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical"}],"updated_at":"2026-11-02T19:24:18.636842Z"}],"ghsa":[{"id":"GHSA-4v9x-cqc5-j645","title":"Codechecker has an authentication bypass for certain API calls","description":"### 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.","status":"published","published":"2026-05-05T17:58:09Z","modified":"2026-10-27T16:27:41Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical"}],"cwes":["CWE-290","CWE-863"],"updated_at":"2026-11-02T14:41:38.969831Z"}],"nvd":[{"id":"CVE-2026-25660","description":"CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. \nAuthentication bypass occurs when the URL ends with Authentication with certain function calls.  This bypass allows assigning arbitrary permission to any user existing in CodeChecker.\n\nThis issue affects CodeChecker: through 6.27.3.","status":"published","published":"2026-04-24T14:16:18.127Z","modified":"2026-10-26T22:10:00.163Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-290","CWE-863"],"updated_at":"2026-11-02T14:12:15.867234Z"}],"osv":[{"id":"CVE-2026-25660","title":"Authentication bypass for certain API calls","description":"CodeChecker is an analyzer tooling, defect database and viewer extension for the Clang Static Analyzer and Clang Tidy. \nAuthentication bypass occurs when the URL ends with Authentication with certain function calls.  This bypass allows assigning arbitrary permission to any user existing in CodeChecker.\n\nThis issue affects CodeChecker: through 6.27.3.","status":"published","published":"2026-04-24T13:10:26.171Z","modified":"2026-10-28T02:30:59.643205335Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Red","level":"critical"}],"cwes":["CWE-290","CWE-863"],"updated_at":"2026-11-02T15:44:59.438965Z"},{"id":"GHSA-4v9x-cqc5-j645","title":"Codechecker has an authentication bypass for certain API calls","description":"### 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.","status":"published","published":"2026-05-05T17:58:09Z","modified":"2026-10-27T16:45:03.525213578Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical"}],"cwes":["CWE-290","CWE-863"],"updated_at":"2026-11-02T15:46:37.528068Z"},{"id":"PYSEC-2026-317","title":"Codechecker has an authentication bypass for certain API calls","description":"### 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.\n In 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.","status":"published","published":"2026-06-29T11:50:50.050635Z","modified":"2026-07-01T20:22:50.508956Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","level":"critical"}],"updated_at":"2026-11-02T15:52:56.429374Z"}]}}