CVE-2026-76238

High

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.

SeverityHigh

CVSS7.2

Exploit probability—

ProductStigmem-node

PublishedAug 19, 2026

First seenAug 19, 2026

Weakness typeCWE-863Incorrect authorization

How to fix

Update

stigmem-node0.9.0a12 or later

Vendor advisories

github.com/eidetic-labs/stigmem/security/advisories/GHSA-6gqw-jqv7-v88m

Affected products

Product	Affected versions	Fixed in
stigmem-nodePyPI	v < 0.9.0a12	0.9.0a12

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