Weblate: Remote code execution during backup restoration
### Impact The project backup didn't filter Git and Mercurial configuration files and this could lead to remote code execution under certain circumstances. ### Patches * https://github.com/WeblateOrg/weblate/pull/18549 ### Workarounds The project backup is only accessible to users who can create projects. Restricting access to this limits scope of the vulnerability. ### References This issue was reported by [ggamno](https://hackerone.com/ggamno) via HackerOne.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-33435US | — | — | ||
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 executio… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/WeblateOrg/weblatePACKAGE
- https://github.com/WeblateOrg/weblate/pull/18549WEB
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-558g-h753-6m33WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/weblate/PYSEC-2026-154.yamlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-33435ADVISORY
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