CVE-2026-67404: RabbitMQ: OAuth2 silent verify_none fallback for JWKS fetch

Overview

Severity

High (CVSS 7.4)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-10-21

EPSS Score

0.20% (percentile: 9.3%)

Affected Products (1)

Other

• 21829-17084

Revision History

• 2026-10-21: Information published.