CVE-2026-76237: Authorization Bypass Through User-Controlled Key in eidetic-labs stigmem
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.
AI Analysis
Technical Summary
CVE-2026-76237 describes a broken object level authorization (BOLA) vulnerability in stigmem-node versions prior to 0.9.0a12. In multi-tenant deployments that opt into the stigmem-plugin-multi-tenant, the quarantine review endpoints (/v1/quarantine) lack proper tenant_id predicates and tenant-scoped garden lookups. This allows a tenant administrator with only tenant write privileges to list, read, admit, or reject quarantined facts belonging to other tenants, resulting in cross-tenant data access and modification. Default single-tenant deployments are not impacted by this issue.
Potential Impact
An attacker with tenant write privileges in a multi-tenant stigmem deployment can bypass authorization controls to access and manipulate quarantined facts of other tenants. This compromises tenant data isolation and confidentiality within the affected endpoints. There is no indication of privilege escalation beyond tenant write access or impact on single-tenant deployments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid enabling the stigmem-plugin-multi-tenant in multi-tenant environments or restrict tenant write privileges to trusted users only. Monitor vendor communications for official patches or mitigations.
CVE-2026-76237: Authorization Bypass Through User-Controlled Key in eidetic-labs stigmem
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.
CVSS v4.0
Score 8.6high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76237 describes a broken object level authorization (BOLA) vulnerability in stigmem-node versions prior to 0.9.0a12. In multi-tenant deployments that opt into the stigmem-plugin-multi-tenant, the quarantine review endpoints (/v1/quarantine) lack proper tenant_id predicates and tenant-scoped garden lookups. This allows a tenant administrator with only tenant write privileges to list, read, admit, or reject quarantined facts belonging to other tenants, resulting in cross-tenant data access and modification. Default single-tenant deployments are not impacted by this issue.
Potential Impact
An attacker with tenant write privileges in a multi-tenant stigmem deployment can bypass authorization controls to access and manipulate quarantined facts of other tenants. This compromises tenant data isolation and confidentiality within the affected endpoints. There is no indication of privilege escalation beyond tenant write access or impact on single-tenant deployments.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid enabling the stigmem-plugin-multi-tenant in multi-tenant environments or restrict tenant write privileges to trusted users only. Monitor vendor communications for official patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T11:38:33.224Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a85bc7eacd9273b492f4a0e
Added to database: 08/19/2026, 14:23:58 UTC
Last enriched: 08/19/2026, 14:38:07 UTC
Last updated: 08/20/2026, 00:37:27 UTC
Views: 6
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