What’s Vulnerable › Vulnerabilities

CVE-2026-76238: stigmem before 0.9.0a12 Cross-Tenant BOLA via decay sweep

• Severity: high (CVSS 7.2 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-863

Description

stigmem versions before 0.9.0a12 contain a broken object level authorization vulnerability in the decay sweep endpoint that allows authenticated attackers with write credentials for one tenant to execute decay operations affecting all tenants. Attackers can submit POST requests to the decay sweep endpoint with ttl_seconds=0 to expire facts across all tenants, or use dry_run to obtain cross-tenant fact counts and existence information.

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-6gqw-jqv7-v88m
• https://www.vulncheck.com/advisories/stigmem-before-0a12-cross-tenant-bola-via-decay-sweep

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