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.

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History

Thu, 03 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
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.
Title Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification
First Time appeared Redhat
Redhat ansible Automation Platform
Redhat enterprise Linux
Redhat openshift Ai
Redhat openstack
Weaknesses CWE-347
CPEs cpe:/a:redhat:ansible_automation_platform:2
cpe:/a:redhat:openshift_ai
cpe:/a:redhat:openstack:16.2
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat ansible Automation Platform
Redhat enterprise Linux
Redhat openshift Ai
Redhat openstack
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-03T20:46:40.788Z

Reserved: 2026-09-01T10:24:25.710Z

Link: CVE-2026-84185

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-03T21:17:22.687

Modified: 2026-09-03T21:17:22.687

Link: CVE-2026-84185

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T22:30:10Z

Weaknesses