CVE-2026-84185

Jwcrypto: jwcrypto: general json jws kid binding bypass during jwkset verification

Published: Sep 3, 2026Updated: Sep 8, 2026 Sources: CVE List NVDCWE-347

5.9MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-347

Affected Products

Red Hat

commercial·US

Red Hat Ansible Automation Platform 2On-premDev Tool

DevTools & CI / ci-cd

Red Hat Enterprise Linux 10On-premOS

Operating Systems / linux-distro

Red Hat OpenShift AI (RHOAI)SaaSSaaS Service

Cloud & SaaS

Red Hat OpenStack Platform 16.2On-prem

Cloud & SaaS / cloud-platform

and 3 more affected products View all →

Exploitability

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Collection

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References

https://access.redhat.com/security/cve/CVE-2026-84185

access.redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2526729

bugzilla.redhat.com

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