CVE-2026-57956 SigNoz < 0.133.0 - Cross-Organization Insecure Direct Object Reference in Alert Rules
Authenticated users can read, edit, and delete alert rules from other organizations due to missing tenant isolation checks in SigNoz.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57956?
CVE-2026-57956 is a medium-severity missing authorization vulnerability in signoz, published on 29 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SigNoz before 0.133.0 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organization ID. Attackers can read, edit, and delete alert rules belonging to other organizations by exploiting the missing tenant isolation check, bypassing multi-tenant access controls.
Weakness: CWE-639
Which versions are affected by CVE-2026-57956?
How do I fix CVE-2026-57956?
No fix has been published for CVE-2026-57956 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-2026-57956 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57956 exists.
Sources
Also known as GHSA-3vgg-7h5g-62mm.