Vulnerability details
CVE-2026-92787
feast-dev feast
Feast through 0.66.0 Authentication Bypass via Unverified Token
CVSS 4.0
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| feast-dev | feast | v ≤ 0.66.0 | CVEProject cvelistV5 (CNA) |
References and advisories
6- https://github.com/feast-dev/feast product
- https://github.com/feast-dev/feast/blob/v0.66.0/sdk/python/feast/permissions/security_manager.py#L248-L264 technical-description
- https://github.com/feast-dev/feast/blob/f296d4b/sdk/python/feast/permissions/auth/oidc_token_parser.py#L152-L156 technical-description
- https://github.com/feast-dev/feast/blob/f296d4b/infra/charts/feast-feature-server/templates/deployment.yaml#L46-L47 technical-description
- https://www.vulncheck.com/advisories/feast-through-0.66.0-authentication-bypass-via-unverified-token third-party-advisory
- https://github.com/feast-dev/feast/issues/6785 issue-tracking
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Details
- Published
- 2026-09-17
- Last updated
- 2026-09-19
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.7%
Probability of exploitation in 30 days
53.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-798Use of Hard-coded Credentials