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.
History

Fri, 02 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Weblate
Weblate weblate
Vendors & Products Weblate
Weblate weblate

Tue, 29 Sep 2026 15:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Weblate: Mercurial argument injection via repository filenames allows authenticated command execution
Weaknesses CWE-78
CWE-88
References
Metrics cvssV3_1

{'score': 8.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-09-29T14:58:20.313Z

Updated: 2026-10-02T12:09:21.053Z

Reserved: 2026-09-04T19:29:21.057Z

Link: CVE-2026-86035

cve-icon Vulnrichment

Updated: 2026-10-02T12:09:16.762Z

cve-icon NVD

Status : Deferred

Published: 2026-09-29T15:17:30.407

Modified: 2026-10-02T13:18:01.603

Link: CVE-2026-86035

cve-icon Redhat

No data.