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CVE-2026-50127

Medium

Description

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.

SeverityMedium
CVSS5.9
Exploit probability—
ProductWeblate
PublishedJun 10, 2026
First seenJun 10, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update
  • weblate2026.6 or later

Affected products

ProductAffected versionsFixed in
weblatePyPI5.15 ≤ v < 2026.62026.6

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