Weblate: Remote code execution during backup restoration

CAO 8.0CVE-2026-33435 · GHSA-558g-h753-6m33 · PYSEC-2026-154 · Công bố 15/04/2026 · cập nhật 26/10/2026

Tóm tắt nhanh

CVE-2026-33435 là lỗ hổng mức CAO (CVSS 8.0) ảnh hưởng weblate, weblate (weblate).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.71%, cao hơn 53.5% các lỗ hổng khác.
Cách xử lý: cập nhật lên 5.17 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
weblate PyPI	`< 5.17`	`5.17`
weblate weblate	`< 5.17`	`5.17`

Mô tả

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 via HackerOne.

Mô tả của NVD

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.