CVE-2026-57956

SigNoz < 0.133.0 - Cross-Organization Insecure Direct Object Reference in Alert Rules

MEDIUM
6.4
CVSS Score
Published: June 29, 2026 at 05:22 PM UTC
Updated: July 20, 2026 at 04:17 PM UTC
1 product affected across 1 vendorSigNoz

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.133.0
Affected range stops below 0.133.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-639

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