GHSA-vmfc-9982-2m45: Weblate SSRF: outbound URL guard misses some private ranges
Impact
Weblate's VCS_RESTRICT_PRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions.
Patches
- https://github.com/WeblateOrg/weblate/pull/19768
Resources
The issue was reported by @tonghuaroot via GitHub, and the same user also provided the initial patch.
Details
Original advisory: https://github.com/advisories/GHSA-vmfc-9982-2m45
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-501270.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-50127 | coverage & exploitation status | NVD · CVE.org |
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