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8.6
CVE-2026-76237: stigmem before 0.9.0a12 allows unauthorized access to other tenants' data
CVE-2026-76237 · published 2 months ago
Summary
A bug in stigmem allows a tenant administrator to see and manage data from other tenants. This only affects multi-tenant deployments of stigmem. To protect your data, ensure you are running the latest version of stigmem and review your access controls.
What to do
- Update eidetic-labs stigmem to version 0.9.0a12 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| eidetic-labs | stigmem | < 0.9.0a12 |
Original advisory text
stigmem before 0.9.0a12 Cross-Tenant BOLA via quarantine
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.
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker full control
Type
CWE-639Authorization Bypass Through User-Controlled Key
Timeline
Published19 Aug 2026
Updated4 Nov 2026
First seen19 Aug 2026
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