CVE-2026-50127mediumCWE-918

CVE-2026-50127: medium-severity vulnerability in WeblateOrg weblate

Weblate SSRF: outbound URL guard misses the NAT64 well-known prefix (64:ff9b::/96)

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.9epss 0.3%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
WeblateOrg · weblate
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