CVE-2026-55228 Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project
Authenticated project managers can bypass authorization checks to read and modify private projects they do not own.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-55228?
CVE-2026-55228 is a high-severity missing authorization vulnerability in WeblateOrg weblate, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Weblate is a web-based continuous localization platform used to manage software translations. In versions prior to 2026.7, the REST API did not properly enforce the scope of project- and workspace-scoped teams, allowing a user to submit invalid team configurations through the API. By assigning projects to a team via these unvalidated requests, a user could grant access to projects they were not authorized to see or manage. This could expose private projects and permit translation, repository, and project-management operations outside the user's intended permission scope. This issue is fixed in version 2026.7.
Weakness: CWE-639
Which versions are affected by CVE-2026-55228?
3 open source packages ship an affected version, including weblate and Weblate.
| Package | Affected | Fixed in |
|---|---|---|
weblate PyPI | All versions | 2026.7 |
weblate PyPI | All versions | 2026.7 |
Weblate PyPI | All versions | 2026.7 |
How do I fix CVE-2026-55228?
Upgrade weblate to 2026.7 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-55228 being exploited?
There is no known exploitation of CVE-2026-55228 in the wild and no public exploit code.
Sources
Also known as GHSA-2q2q-jr9g-v9rf, PYSEC-2026-3942.