CVE-2026-50127: Weblateorg Weblate

Medium severity, CVSS 5.9. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Weblateorg Weblate: from 5.15, before 2026.6 (fixed in 2026.6)

Published 2026-06-10. Last modified 2026-06-17.