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
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | weblate | < 5.17 | 5.17 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-23, CWE-434, CWE-94- Platform
- Python (PyPI)
- Package
weblate- Disclosed
- 15.04.2026
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-154 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-558g-h753-6m33 - CC BY 4.0
Vulnerability history: weblate
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 36
- First → latest
- 03.2017 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 6
- Medium 22
- Low 7
Disclosures per year
- 2017: 1
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 12
- 2026: 21
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Weblate: Remote code execution during backup restoration this entry
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