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High · 8.1 CVE-2026-33435 EUVD-2026-23001GHSA-558g-h753-6m33PYSEC-2026-154

Weblate: Remote code execution during backup restoration

Published Apr 15, 2026 · Updated Apr 15, 2026 · Assigned by GitHub_M

Description

Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can limit the scope of the vulnerability by restricting access to the project backup, as it is only accessible to users who can create projects.

Affected products

VendorProductAffectedFixed
WeblateOrg weblate < 5.17 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI weblate < 5.17 5.17 GHSA-558g-h753-6m33

References