CVE-2026-76238

stigmem before 0.9.0a12 Cross-Tenant BOLA via decay sweep

HIGH
7.2
CVSS Score
Published: August 19, 2026 at 02:02 PM UTC
Updated: September 24, 2026 at 08:57 PM UTC
1 product affected across 1 vendorStigmem Node

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Severity
HIGH7.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.9.0a12
Vendor states this is fixed in 0.9.0a12 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863

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