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

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HIGH

stigmem before 0.9.0a12 Cross-Tenant BOLA via quarantine

Published Aug 19, 2026

8.6

HIGH

CVSS 4.0

EPSS 0.36%

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

Vendor Eidetic-Labs Product Stigmem-Node Default
unaffected
- Version
  0
  Status
  affected
  Constraints
  <0.9.0a12
- Version
  0.9.0a12
  Status
  unaffected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Eidetic-Labs

Stigmem-Node

unaffected

Version	Status	Constraints
0	affected	<0.9.0a12
0.9.0a12	unaffected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-639

Authorization Bypass

References (3)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-62477
Advisory
https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-xhv3-q4xx-349r
vendor-advisory
https://www.vulncheck.com/advisories/stigmem-before-0a12-cross-tenant-bola-via-quarantine
third-party-advisory

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-62477		Advisory
https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-xhv3-q4xx-349r		vendor-advisory
https://www.vulncheck.com/advisories/stigmem-before-0a12-cross-tenant-bola-via-quarantine		third-party-advisory