5.9
Medium
CVE-2026-84185 Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification
Description
A flaw was found in the jwcrypto library, which is used for implementing Javascript Object Signing and Encryption (JOSE) standards. The issue occurs when the library verifies a General JSON Serialization JWS using a set of keys. Due to a coding error, the library fails to correctly identify the specific key ID (kid) and may instead accept a signature made by any valid key in the set. This can allow an attacker with a valid key to bypass authorization checks in applications that rely on the key ID to identify specific tenants or users.
CVSS 3.1 detail
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:NExploitable remotely over the network, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- Low
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- High
- Availability
- None
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Ansible Automation Platform 2 | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat OpenShift AI (RHOAI) | Versions not published | |
| Red Hat OpenStack Platform 16.2 | Versions not published |
References
- access.redhat.com access.redhat.com
- RHBZ#2526729 bugzilla.redhat.com
Timeline
- Published
- Last modified
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