{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86035","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-04T19:29:21.057Z","datePublished":"2026-09-29T14:58:20.313Z","dateUpdated":"2026-10-02T12:09:21.053Z"},"containers":{"cna":{"title":"Weblate: Mercurial argument injection via repository filenames allows authenticated command execution","problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-88","lang":"en","description":"CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55","tags":["x_refsource_CONFIRM"],"url":"https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55"},{"name":"https://github.com/WeblateOrg/weblate/pull/20768","tags":["x_refsource_MISC"],"url":"https://github.com/WeblateOrg/weblate/pull/20768"},{"name":"https://github.com/WeblateOrg/weblate/commit/f60a9759a6d851bd10ccdefe9b1b7f0cdb9e9bbd","tags":["x_refsource_MISC"],"url":"https://github.com/WeblateOrg/weblate/commit/f60a9759a6d851bd10ccdefe9b1b7f0cdb9e9bbd"},{"name":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8","tags":["x_refsource_MISC"],"url":"https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8"}],"affected":[{"vendor":"WeblateOrg","product":"weblate","versions":[{"version":">= 4.11.1, < 2026.8","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-29T14:58:20.313Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-327h-qqgm-qv55","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-02T12:09:07.392381Z","id":"CVE-2026-86035","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-02T12:09:21.053Z"}}]}}