CVE-2026-65055 Taiga taiga-back Private Project Member Roster Disclosure via Unauthenticated filters_data Endpoints
Unauthenticated attackers can disclose private project member rosters and workflow configurations via filters_data endpoints in Taiga.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-65055?
CVE-2026-65055 is a medium-severity missing authorization vulnerability in taiga-back, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Taiga 6.10.1 contains a missing authorization vulnerability that allows unauthenticated attackers to disclose the full member roster and internal workflow configuration of any private project by supplying a project ID to the filters_data API endpoints on UserStory, Task, Issue, and Epic viewsets. Attackers can send unauthenticated GET requests to the filters_data endpoints with sequential integer project IDs to enumerate private project membership details including user IDs, full names, and gravatar hashes, bypassing the access controls that correctly restrict other project API endpoints.
Weakness: CWE-862
Which versions are affected by CVE-2026-65055?
How do I fix CVE-2026-65055?
No fix has been published for CVE-2026-65055 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-65055 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-65055 exists.
Sources
Also known as GHSA-rj5p-xwjf-qw97.