GitHub Advisoryadvisory · PyPI
GHSA-5fhx-9jwj-867m Weblate: Authenticated SSRF via redirect bypass of ALLOWED_ASSET_DOMAINS in screenshot URL uploads
MEDIUM
Official page ↗
- Aliases
- CVE-2026-33440
- Ecosystem
- PyPI
- Packages
- weblate
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
- Weaknesses
- CWE-918
- Reviewed
- 2026-04-16
Affected packages
• PyPI weblate: < 5.17 → fixed in 5.17
Description
Impact
The ALLOWED_ASSET_DOMAINS setting applied only to the first issued requests and didn't restrict possible redirects.
Patches
• https://github.com/WeblateOrg/weblate/pull/18550
References
This issue was reported by @spbavarva via GitHub.
Related
Alias · CVE (1)
- CVE-2026-33440 Weblate is a web based localization tool. vulnerability
Weakness · CWE (1)
- CWE-918 Server-Side Request Forgery weakness
References
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-5fhx-9jwj-867m web
- https://nvd.nist.gov/vuln/detail/CVE-2026-33440 advisory
- https://github.com/WeblateOrg/weblate/pull/18550 web
- https://github.com/WeblateOrg/weblate/commit/8be80625a864c8db5854503872a65e8a0b7399a6 web
- https://github.com/WeblateOrg/weblate package