PYSEC-2026-3416 Weblate SSRF: outbound URL guard misses some private ranges

Impact Weblate's VCSRESTRICTPRIVATE 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. Patches https://github.com/WeblateOrg/weblate/pull/19768 Resources The issue wa...

PYSEC-2026-3415 Weblate: Stored HTML injection in editor search preview

Impact Weblate's live search preview renders unit source and context as HTML without escaping. Any contributor whose content reaches those fields stores HTML and CSS that runs inside the authenticated editor of every user who runs a matching search. Patches...

EUVD-2026-36113

Weblate SSRF: outbound URL guard misses some private ranges...

GHSA-VMFC-9982-2M45 Weblate SSRF: outbound URL guard misses some private ranges

Impact Weblate's VCSRESTRICTPRIVATE 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. Patches https://github.com/WeblateOrg/weblate/pull/19768 Resources The issue wa...

PYSEC-2026-2053 Weblate wlc path traversal vulnerability: Unsanitized API slugs in download command

Impact Multi-translation download could write to an arbitrary location when instructed by a crafted server. Patches https://github.com/WeblateOrg/wlc/pull/1128 Workarounds Do not use wlc download with untrusted servers. References This issue was reported to us by wh1zee via HackerOne...

PYSEC-2026-2037 Weblate leaks information via screenshots

Impact The screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. Patches https://github.com/WeblateOrg/weblate/pull/17516 References Thanks to Lukas May and Michael Leu...

PYSEC-2026-2051 Weblate command-line client susceptible to SSL verification skip

Impact The SSL verification would be skipped for some crafted URLs. Patches https://github.com/WeblateOrg/wlc/pull/1097 Workarounds Avoid using untrusted wlc configurations, as that might cause insecure connections. References This issue was reported to us by wh1zee via HackerOne...

PYSEC-2026-2052 Weblate wlc has insecure API key configuration

Impact Historically, wlc supported providing unscoped API keys in the setting. This practice was discouraged for years, but the code was never removed. This might cause the API key to be used against different server. Patches https://github.com/WeblateOrg/wlc/pull/1098 Workarounds Remove unscoped...

PYSEC-2026-2040 Weblate has an arbitrary file read via symbolic links

Impact It was possible to read arbitrary files from the server file system using crafted symbolic links in the repository. Resources Thanks to Jason Marcello for responsible disclosure...

PYSEC-2026-2042 Weblate has improper validation upon invitation acceptance

Impact It was possible to accept an invitation opened by a different Weblate user. Patches https://github.com/WeblateOrg/weblate/pull/16913 Workarounds Users should avoid leaving Weblate sessions with an unattended opened invitation. References Thanks to Nahid0x for responsibly disclosing this...

PYSEC-2026-2036 Weblate has a long session expiry when verifying second factor

Impact The verification of the second factor had too long a session expiry. The long session expiry could be used to circumvent rate limiting of the second factor. Patches This issue has been addressed in Weblate 5.13.1 via https://github.com/WeblateOrg/weblate/pull/16002. References Thanks to...

PYSEC-2026-2038 Weblate exposes personal IP address via e-mail

Impact The audit log notifications included the full IP address of the acting user. This could be obtained by third-party servers such as SMTP relays, or spam filters. Patches This issue has been addressed in Weblate 5.12 via https://github.com/WeblateOrg/weblate/pull/15102. References Thanks to...

PYSEC-2026-2039 Weblate lacks rate limiting when verifying second factor

Impact The verification of the second factor was not subject to rate limiting. The absence of rate limiting on the second factor endpoint allows an attacker with valid credentials to automate OTP guessing. Patches This issue has been addressed in Weblate 5.12 via...

PYSEC-2026-2041 Weblate vulnerable to improper sanitization of project backups

Impact Weblate didn't correctly validate filenames when restoring project backup. It may be possible to gain unauthorized access to files on the server using a crafted ZIP file. Patches This issue has been addressed in Weblate 5.6.2 via...

PYSEC-2026-571 Weblate is vulnerable to RCE through Git config file overwrite

Impact It was possible to overwrite Git configuration remotely and override some of its behavior. Resources Thanks to Jason Marcello for responsible disclosure...

OPENSUSE-SU-2026:11051-1 weblate-5.17.1-2.1 on GA media

These are all security issues fixed in the weblate-5.17.1-2.1 package on the GA media of openSUSE Tumbleweed...

SUSE CVE-2026-45106

Weblate is a web based localization tool. Prior to version 2026.5, Weblate's live search preview renders unit source and context as HTML without escaping. Any contributor whose content reaches those fields stores HTML and CSS that runs inside the authenticated editor of every user who runs a...

SUSE CVE-2026-50127

Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCSRESTRICTPRIVATE 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...

CVE-2026-50127

Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCSRESTRICTPRIVATE 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...

CVE-2026-45106

Weblate is a web based localization tool. Prior to version 2026.5, Weblate's live search preview renders unit source and context as HTML without escaping. Any contributor whose content reaches those fields stores HTML and CSS that runs inside the authenticated editor of every user who runs a...