{"id":"CVE-2026-86035","summary":"Weblate: Mercurial argument injection via repository filenames allows authenticated command execution","details":"Weblate is a web-based continuous localization platform used to manage software translations. Weblate 4.11.1 through 2026.7.1 contains an argument-injection vulnerability in its Mercurial backend. Repository filenames beginning with - could be interpreted as Mercurial options instead of literal paths. An authenticated user with project-scoped component.edit permission could exploit this through a Mercurial-backed RESX component using the Update RESX files add-on. A later repository update could execute arbitrary commands with the privileges of the Weblate service account. This is a residual incomplete fix for CVE-2022-23915. This issue has been patched in version 2026.8.","aliases":["GHSA-327h-qqgm-qv55"],"modified":"2026-09-30T03:48:09.431816291Z","published":"2026-09-29T14:58:20.313Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-78","CWE-88"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86035.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86035.json"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/commit/f60a9759a6d851bd10ccdefe9b1b7f0cdb9e9bbd"},{"type":"FIX","url":"https://github.com/WeblateOrg/weblate/pull/20768"},{"type":"WEB","url":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8"},{"type":"ADVISORY","url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86035"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/weblateorg/weblate","events":[{"introduced":"c17dbfb45f4ce50ee0e07b9519512c5a9a9313c6"},{"fixed":"b924fd613e7e3bb93e2f0ff5640ee82b5d3620a5"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"4.11.1"},{"fixed":"2026.8"}]}}],"versions":["weblate-2026.7.1","weblate-2026.7","weblate-2026.6","weblate-2026.5","weblate-5.17.1","weblate-5.17","weblate-5.16.1","weblate-5.16","weblate-5.15.2","weblate-5.15.1","weblate-5.15","weblate-5.14.1","weblate-5.14","weblate-5.13.2","weblate-5.13.1","weblate-5.13","weblate-5.12.2","weblate-5.12.1","weblate-5.12","weblate-5.11.1","weblate-5.11","weblate-5.10.3","weblate-5.10.2","weblate-5.10.1","weblate-5.10","weblate-5.9.2","weblate-5.9.1","weblate-5.9","weblate-5.8.2","weblate-5.8.1","weblate-5.8","weblate-5.7.2","weblate-5.7.1","weblate-5.7","weblate-5.6.1","weblate-5.6","weblate-5.5.5","weblate-5.5.4","weblate-5.5.3","weblate-5.5.2","weblate-5.5.1","weblate-5.5","weblate-5.4","weblate-5.3","weblate-5.2.1","weblate-5.2","weblate-5.1.1","weblate-5.1","weblate-5.0.2","weblate-5.0.1","weblate-4.18.1","weblate-4.18","weblate-4.17","weblate-4.16.2","weblate-4.16.1","weblate-4.16","weblate-4.15.1","weblate-4.15","weblate-4.14.2","weblate-4.14.1","weblate-4.14","weblate-4.13.1","weblate-4.13","weblate-4.12.1","weblate-4.12","weblate-4.11.2","weblate-4.11.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86035.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}