CVE-2026-84185
Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification
- State
- Published
- Severity
- 5.9 Medium
- Published
- Sep 3, 2026
- Updated
- Sep 4, 2026
- Reserved
- Sep 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N | redhat |
Weaknesses
- CWE-347 Improper Verification of Cryptographic Signature
Affected Products
| Product | Versions |
|---|---|
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Ansible Automation Platform 2Red Hat | |
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat | |
Red Hat OpenStack Platform 16.2Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-84185vdb-entry
- RHBZ#2526729issue-tracking
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