Cross-Tenant Vulnerability in Stigmem Node by Eidetic Labs
CVE-2026-76237

8.6HIGH

Key Information:

Vendor

Eidetic-labs

Status
Stigmem
Vendor
CVE Published:
19 August 2026

What is CVE-2026-76237?

The Stigmem Node platform prior to version 0.9.0a12 contains a broken object level authorization vulnerability specifically in multi-tenant deployments utilizing the opt-in stigmem-plugin-multi-tenant. The issue arises from inadequate tenant_id filtering in the quarantine review endpoints, specifically during list and count queries. This oversight allows tenant administrators with limited permissions to access, manage, and manipulate quarantined facts belonging to other tenants through the API, exposing sensitive data and potentially compromising tenant segregation.

Affected Version(s)

stigmem 0 < 0.9.0a12

stigmem 0.9.0a12

References

https://github.com/eidetic-labs/stigmem/security/advisori...
vendor-advisory
https://www.vulncheck.com/advisories/stigmem-before-0a12-...
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.