CVE-2026-86035— Weblate: Mercurial argument injection via repository filenames allows authenticated command execution
Quick assessment
Affected
WeblateOrg weblate
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 M
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I. Basic Information for CVE-2026-86035
Vulnerability Information
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Vulnerability Title
Weblate: Mercurial argument injection via repository filenames allows authenticated command execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| WeblateOrg | weblate | >= 4.11.1, < 2026.8 | - |
|
II. Public POCs for CVE-2026-86035
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-86035 (4)
-
https://github.com/WeblateOrg/weblate/pull/20768 x_refsource_MISC
-
https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8 x_refsource_MISC
-
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55 x_refsource_CONFIRM
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V. Comments for CVE-2026-86035
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