GitHub Advisoryadvisory · PyPI
GHSA-xrwr-fcw6-fmq8 Weblate: SSRF via Project-Level Machinery Configuration
MEDIUM
Official page ↗
- Aliases
- CVE-2026-34244
- 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-200, CWE-918
- Reviewed
- 2026-04-16
Affected packages
• PyPI weblate: < 5.17 → fixed in 5.17
Description
Impact
A user with the `project.edit` permission (granted by the per-project "Administration" role) can configure machine translation service URLs pointing to arbitrary internal network addresses. During configuration validation, Weblate makes an HTTP request to the attacker-controlled URL and reflects up to 200 characters of the response body back to the user in an error message. This constitutes a Server-Side Request Forgery (SSRF) with partial response read.
Patches
• https://github.com/WeblateOrg/weblate/pull/18684
• The solution then has been cleaned up in followup patches
Workarounds
Limiting available machinery services via WEBLATE_MACHINERY setting can avoid this.
References
Thanks to @DavidCarliez for disclosing this via GitHub private vulnerability reporting.
Related
Alias · CVE (1)
- CVE-2026-34244 Weblate is a web based localization tool. vulnerability
References
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-xrwr-fcw6-fmq8 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-34244 advisory
- https://github.com/WeblateOrg/weblate/pull/18684 web
- https://github.com/WeblateOrg/weblate/commit/e619e9090202e4886b844c110d39308e7e882c0e web
- https://github.com/WeblateOrg/weblate package