Server-side Request Forgery (SSRF) Affecting weblate package, versions [,5.17)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published20 Apr 2026
- disclosed16 Apr 2026
- creditLihfdgjr
Introduced: 16 Apr 2026
CVE-2026-39845 (opens in a new tab)How to fix?
Upgrade weblate to version 5.17 or higher.
Overview
weblate is an A web-based continuous localization system with tight version control integration
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the fetch_url function in the webhook add-on. An attacker can access internal resources by supplying crafted URLs to the add-on.
Workaround
This vulnerability can be mitigated by disabling the webhook add-on.