Patch Forecast
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CVE-2026-86035

Weblate is a web-based continuous localization platform used to manage software translations

Risk score
57/100
CVSS
8.5 v3.1
Exploit chance (30 days)
0.4%
Published
29 Sep 2026

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What to know

What it is
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…
Affected
See advisory
Fix
Upgrade the product to 2026.8 or later.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 8.5 high

References

Original 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.

Last activity 29 Sep 2026. Patch Forecast updates every hour.