CVE-2026-39845
Weblate: SSRF via the webhook add-on using unprotected fetch_url()
4.1
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
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.
How to fix CVE-2026-39845
To remediate CVE-2026-39845, upgrade the affected package to a fixed version below.
- —upgrade to 5.17 or later
- —upgrade to 5.17 or later
Is CVE-2026-39845 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 5.17
- from 0, < 5.17
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N |