CVE-2026-92787 Details
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.
A vulnerability in Feast versions through 0.66.0 allows for authentication bypass by exploiting unverified JSON Web Tokens (JWTs). The issue arises because the application fails to properly validate JWT signatures before using them to establish user identities. This flaw enables attackers to bypass role-based access control (RBAC) by presenting an unverified token that includes a hardcoded claim value. As a result, attackers can gain unauthorized access to internal identities and manipulate all entities, feature views, data sources, and permission policies on the server.
Users are advised to update to Feast version 0.66.1 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 16, 2026CISA-ADP
Assessed Sep 19, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/feast-dev/feast/issues/6785 | CISA-ADP | ExploitIssue TrackingTechnical AnalysisVendor |
| https://github.com/feast-dev/feast | [email protected] | Vendor |
| https://github.com/feast-dev/feast/blob/f296d4b/infra/charts/feast-feature-server/templates/deployment.yaml#L46-L47 | [email protected] | Source CodeVendor |
| https://github.com/feast-dev/feast/blob/f296d4b/sdk/python/feast/permissions/auth/oidc_token_parser.py#L152-L156 | [email protected] | Source CodeVendor |
| https://github.com/feast-dev/feast/blob/v0.66.0/sdk/python/feast/permissions/security_manager.py#L248-L264 | [email protected] | Source CodeVendor |
| https://github.com/feast-dev/feast/issues/6785 | [email protected] | ExploitIssue TrackingTechnical AnalysisVendor |
| https://www.vulncheck.com/advisories/feast-through-0.66.0-authentication-bypass-via-unverified-token | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-798 | Use of Hard-coded Credentials | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Feast | <= 0.66.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 19, 2026 | CVE Modified | CISA-ADP |
| Sep 16, 2026 | New CVE Received | [email protected] |