{"schema":"threatline.record/2","record":{"id":"CVE-2026-25660","aliases":["GHSA-4v9x-cqc5-j645","PYSEC-2026-317"],"summary":"Codechecker has an 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.","categories":["Libraries & packages"],"product":"codechecker","vendor":"Ericsson","ecosystem":"pip","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-4v9x-cqc5-j645","source_modified_at":"2026-10-27T16:27:41Z","fetched_at":"2026-10-27T21:14:11.489891Z","package":{"ecosystem":"pip","name":"codechecker"},"range":"<= 6.27.3"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-25660","source_modified_at":"2026-04-24T13:51:11.174Z","fetched_at":"2026-10-27T21:14:11.489891Z","product":"CodeChecker","vendor":"Ericsson","versions":[{"status":"affected","version":"0","lessThanOrEqual":"6.27.3","changes":[{"at":"6.27.4","status":"unaffected"}],"versionType":"python"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-4v9x-cqc5-j645","source_modified_at":"2026-10-27T16:45:03.525213578Z","fetched_at":"2026-10-27T21:14:11.489891Z","package":{"name":"codechecker","ecosystem":"PyPI","purl":"pkg:pypi/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"]}],"fixed_versions":[],"cvss":9.3,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00447,"percentile":0.3869,"score_date":"2026-10-27"},"published_at":"2026-04-24T13:10:26.171Z","modified_at":"2026-10-27T16:45:03.525213578Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-4v9x-cqc5-j645","fetched_at":"2026-10-27T21:14:11.489891Z","source_modified_at":"2026-10-27T16:27:41Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-25660","fetched_at":"2026-10-27T21:14:11.489891Z","source_modified_at":"2026-04-24T13:51:11.174Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-4v9x-cqc5-j645","fetched_at":"2026-10-27T21:14:11.489891Z","source_modified_at":"2026-10-27T16:45:03.525213578Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-25660","fetched_at":"2026-10-27T21:14:11.489891Z","source_modified_at":"2026-10-27"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/Ericsson/codechecker/security/advisories/GHSA-4v9x-cqc5-j645","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25660","source":"GitHub Advisory Database"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/codechecker/PYSEC-2026-317.yaml","source":"GitHub Advisory Database"},{"url":"https://pypi.org/project/codechecker","source":"GitHub Advisory Database"},{"url":"https://github.com/advisories/GHSA-4v9x-cqc5-j645","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"total","assessed_at":"2026-04-24T13:50:59.651031Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-27T16:45:03.525213578Z","content_hash":"dd0df2de7caed1d965ccab94f252e9b416ec9f1fecfb46df8fc032daab3fbe74"}}