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Description

SigNoz through 0.130.1 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.

PUBLISHED Reserved 2026-06-26 | Published 2026-06-29 | Updated 2026-07-14 | Assigner VulnCheck




MEDIUM: 6.1CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N

MEDIUM: 6.4CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L

Problem types

Authorization Bypass Through User-Controlled Key

Product status

Default status
unaffected

Any version
affected

Credits

George Chen finder

References

github.com/SigNoz/signoz/issues/11830 exploit

github.com/SigNoz/signoz/issues/11830 (Researcher Disclosure) issue-tracking

www.vulncheck.com/...-direct-object-reference-in-alert-rules third-party-advisory

cve.org (CVE-2026-57956)

nvd.nist.gov (CVE-2026-57956)

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