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

Quick assessment

Affected
SigNoz signoz
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SigNoz SigNoz是SigNoz团队的一款开源应用性能监控工具。 SigNoz 0.130.1及之前版本存在授权问题漏洞，该漏洞源于访问控制失效，允许经过身份验证的用户通过提供目标规则UUID访问其他组织的告警规则，因为告警规则存储谓词无法按组织ID过滤，攻击者利用缺失的租户隔离检查读取、编辑和删除属于其他组织的告警规则，绕过多租户访问控制。

CVSS 6.4 · Medium EPSS 0.21% · P12

Affected Version Matrix 1

VendorProduct Version RangeStatus
SigNoz signoz < 0.133.0 affected
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I. Basic Information for CVE-2026-57956

Vulnerability Information
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Vulnerability Title
SigNoz < 0.133.0 - Cross-Organization Insecure Direct Object Reference in Alert Rules
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
SigNoz 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SigNoz SigNoz是SigNoz团队的一款开源应用性能监控工具。 SigNoz 0.130.1及之前版本存在授权问题漏洞，该漏洞源于访问控制失效，允许经过身份验证的用户通过提供目标规则UUID访问其他组织的告警规则，因为告警规则存储谓词无法按组织ID过滤，攻击者利用缺失的租户隔离检查读取、编辑和删除属于其他组织的告警规则，绕过多租户访问控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SigNoz signoz 0 ~ 0.133.0 -

II. Public POCs for CVE-2026-57956

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III. Intelligence Information for CVE-2026-57956

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Patches & Fixes for CVE-2026-57956 (1)

Vendor Advisories for CVE-2026-57956 (2)

IV. Related Vulnerabilities

Same product: signoz
Same vendor: SigNoz
Same weakness: CWE-639

V. Comments for CVE-2026-57956

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