CVE-2026-92787
Medium
Elevated severity or exploit probability.
CVSS base
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.7%
51.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-798
Published 2026-09-16 · modified 2026-09-19
Description
Feast through 0.66.0 fails to verify JWT token signatures before establishing user identity, allowing attackers to bypass all role-based access control by presenting an unverified token with a hardcoded claim value. Attackers can obtain trusted internal identity and gain unchecked read and write access to all entities, feature views, data sources, and permission policies on the server.
References
- https://github.com/feast-dev/feast
- https://github.com/feast-dev/feast/blob/f296d4b/infra/charts/feast-feature-server/templates/deployment.yaml#L46-L47
- https://github.com/feast-dev/feast/blob/f296d4b/sdk/python/feast/permissions/auth/oidc_token_parser.py#L152-L156
- https://github.com/feast-dev/feast/blob/v0.66.0/sdk/python/feast/permissions/security_manager.py#L248-L264
- https://github.com/feast-dev/feast/issues/6785
- https://www.vulncheck.com/advisories/feast-through-0.66.0-authentication-bypass-via-unverified-token
- https://github.com/feast-dev/feast/issues/6785