CVE-2026-50127 — Weblate SSRF: outbound URL guard misses the NAT64 well-known prefix (64:ff9b::/96)
Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCS_RESTRICT_PRIVATE did not properly account for some transitional IPv6 ranges, …
Published: 2026-06-10 · CVSS: 5.9 · CVSS 3.1
Weblate is a web based localization tool. From version 5.15 to before version 2026.6, 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. This issue has been patched in version 2026.6.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7