medium4.1
CVE-2026-39845
Weblate: SSRF via the webhook add-on using unprotected fetch_url()
Impact
Weblate is a web based localization tool. In versions prior to 5.17, the webhook add-on did not utilize existing SSRF protections. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can disable the webhook add-on as a workaround.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | weblate | < 5.17 | 5.17 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Weblate | Weblate | before 5.17 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-f8hv-g549-hwg2
- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-f8hv-g549-hwg2
- https://nvd.nist.gov/vuln/detail/CVE-2026-39845
- https://github.com/WeblateOrg/weblate/pull/18815
- https://github.com/pypa/advisory-database/tree/main/vulns/weblate/PYSEC-2026-156.yaml