High 8.7Published Jul 10, 2026

CVE-2026-57219RabbitMQ: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less common OAuth 2 configurations

Updated under an hour ago (Oct 27, 2026, 5:50 PM ET)

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It affects rabbitmq-server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, the obsolete GET /api/auth endpoint can disclose the OAuth 2 client secret on RabbitMQ installations configured with management.oauth_client_secret, exposing credentials to unauthenticated callers when the management plugin and that OAuth configuration are enabled. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

CVSS: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jul 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

rabbitmq rabbitmq-server rabbitmq:server (from the name)	from 4.2.0, < 4.2.6; from 4.1.0, < 4.1.11; from 4.0.0, < 4.0.21; from 3.13.0, < 3.13.15	CNA record
broadcom rabbitmq_server broadcom:rabbitmq_server	from 3.13.0 before 4.2.6	NVD

References

References

https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-pj24-8j6m-vq9q	x-refsource-confirm, mitigation, vendor-advisory
https://github.com/rabbitmq/rabbitmq-server/pull/16083	x-refsource-misc, issue-tracking, patch
https://github.com/rabbitmq/rabbitmq-server/pull/16086	x-refsource-misc, issue-tracking, patch
https://github.com/rabbitmq/rabbitmq-server/commit/98b1daf740237c85941e8addcbea6e74f4a2743c	x-refsource-misc, patch
https://github.com/rabbitmq/rabbitmq-server/commit/aa387c4451e7b674df3e3ba89df86a99d697cc7f	x-refsource-misc, patch
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.