What’s Vulnerable › Vulnerabilities

CVE-2026-76237: stigmem before 0.9.0a12 Cross-Tenant BOLA via quarantine

• Severity: high (CVSS 8.6 v4.0)
• 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: 2026-08-19 · updated 2026-09-24
• Weakness: CWE-639

Description

stigmem-node before 0.9.0a12 contains a broken object level authorization (cross-tenant BOLA) vulnerability in the quarantine review endpoints. On multi-tenant deployments running the opt-in stigmem-plugin-multi-tenant, the list/count queries and _get_quarantined_fact in routes/quarantine.py lacked a tenant_id predicate and the garden lookup was not tenant-scoped, allowing a tenant administrator with only a plain tenant write capability to list, read, and admit or reject quarantined facts belonging to other tenants via the /v1/quarantine endpoints. Default single-tenant deployments are not affected.

Affected products

• eidetic-labs stigmem-node: before 0.9.0a12 — fixed in 0.9.0a12

How to fix

Upgrade to a fixed version: eidetic-labs stigmem-node 0.9.0a12. Check the vendor advisory for mitigations.

References

• https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-xhv3-q4xx-349r
• https://www.vulncheck.com/advisories/stigmem-before-0a12-cross-tenant-bola-via-quarantine

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