What’s Vulnerable › Vulnerabilities

CVE-2026-57956: SigNoz < 0.133.0 - Cross-Organization Insecure Direct Object Reference in Alert Rules

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-29 · updated 2026-07-20
• Weakness: CWE-639

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.

Affected products

• signoz: before 0.133.0 — fixed in 0.133.0

How to fix

Upgrade to a fixed version: signoz 0.133.0. Check the vendor advisory for mitigations.

References

• https://github.com/SigNoz/signoz/issues/11830
• https://github.com/SigNoz/signoz/pull/12117
• https://github.com/SigNoz/signoz/releases/tag/v0.133.0
• https://www.vulncheck.com/advisories/signoz-cross-organization-insecure-direct-object-reference-in-alert-rules
• https://github.com/SigNoz/signoz/issues/11830

Get alerted when CVE-2026-57956 or the next vulnerability affects your stack