{"id":"CVE-2026-55227","aliases":["GHSA-2p9g-x3cv-5hh4","PYSEC-2026-3941"],"url":"https://o3.security/vulnerability/CVE-2026-55227","summary":"Observable object existence disclosure in private Weblate projects via globally scoped object lookups","details":"Weblate is a web-based localization tool. In versions prior to 2026.7, several endpoints look up objects in a globally scoped manner rather than restricting the lookup to projects the user can access, so they return HTTP 403 (Forbidden) instead of 404 (Not Found) when a user requests an object they are not authorized to see. This difference lets unauthorized users infer whether a given object exists in a private Weblate project. The issue has been fixed in version 2026.7.","published":"2026-08-26T20:10:39.333Z","modified":"2026-10-21T02:58:36.828525168Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.00183,"percentile":0.08168,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"weblate","fixedVersion":"2026.7"}],"fix":{"url":"https://github.com/WeblateOrg/weblate/commit/836bc082803d49d02f2831ec8339268eb66bcdae","label":"WeblateOrg/weblate@836bc08"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55227.json"},{"type":"ADVISORY","url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-2p9g-x3cv-5hh4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55227"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/commit/836bc082803d49d02f2831ec8339268eb66bcdae"},{"type":"WEB","url":"https://github.com/WeblateOrg/weblate/pull/19971"},{"type":"PACKAGE","url":"https://github.com/WeblateOrg/weblate"},{"type":"WEB","url":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.7"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:58:36.828525168Z"}}