Weblate wlc path traversal vulnerability: Unsanitized API slugs in download command
Impact
Multi-translation download could write to an arbitrary location when instructed by a crafted server.
Patches
Workarounds
Do not use wlc download with untrusted servers.
References
This issue was reported to us by wh1zee via HackerOne.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | wlc | < 1.17.2 | 1.17.2 |
References
- https://github.com/WeblateOrg/wlc/security/advisories/GHSA-mmwx-79f6-67jg
- https://nvd.nist.gov/vuln/detail/CVE-2026-23535
- https://github.com/WeblateOrg/wlc/pull/1128
- https://github.com/WeblateOrg/wlc/commit/216e691c6e50abae97fe2e4e4f21501bf49a585f
- https://github.com/WeblateOrg/wlc
- https://github.com/WeblateOrg/wlc/releases/tag/1.17.2
- https://pypi.org/project/wlc
- https://github.com/advisories/GHSA-mmwx-79f6-67jg
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-22- Platform
- Python (PyPI)
- Package
wlc- Disclosed
- 16.01.2026
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-2053 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-mmwx-79f6-67jg - CC BY 4.0
Vulnerability history: wlc
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
- 5
- First → latest
- 01.2026 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 2
- Low 2
Disclosures per year
- 2026: 5
-
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