CVE-2026-50127: Weblate SSRF: outbound URL guard misses some private ranges

July 7, 2026

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.

References

github.com/WeblateOrg/weblate/pull/19768
github.com/WeblateOrg/weblate/releases/tag/weblate-2026.6
github.com/WeblateOrg/weblate/security/advisories/GHSA-vmfc-9982-2m45
github.com/advisories/GHSA-vmfc-9982-2m45
nvd.nist.gov/vuln/detail/CVE-2026-50127

Code Behaviors & Features

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