Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-67410

CVE-2026-67410HIGH

RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   P   N   N   H   N   N    8.2   .0035   27.4     —

AFFECTED
  Product          Versions             Fixed
  rabbitmq-server  >= 4.3.0, < 4.3.3 –  —

TIMELINE
  Jul 29  Reserved by GitHub_M
  Sep 25  Published (CNA: GitHub_M)
  Oct 8   EXPLOIT PUBLISHED — CVE-2026-67410 (rabbitmq-server). Public exploit reference added.

CWE-200 · CNA: GitHub_M · CVSS v4.0 · 5 references · NVD status: Analyzed

Description

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.3.3 and 4.2.9, OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint (CWE-200). when OAuth2 authentication is enabled for the RabbitMQ Management UI and the configured flow, IDP use a client secret, the oauthclientsecret configuration value is included in the JavaScript served by the unauthenticated endpoint /js/oidc-oauth/bootstrap.js. Any user who can reach the management UI port can retrieve the OAuth2 client secret without Files: deps/rabbitmqmanagement/src/rabbitmgmtwmauth.erl, line 186 deps/rabbitmqmanagement/src/rabbitmgmtoauthbootstrap.erl, lines 35-50 deps/rabbitmqmanagement/src/rabbitmgmtdispatcher.erl, lines 45-49 (route registration) Code Path: 1. The route /js/oidc-oauth/bootstrap.js is registered as a plain Cowboy handler (rabbitmgmtdispatcher.erl:46): Credential exposure for the affected configuration: OAuth2 client secret is accessible without any authentication Token theft: Attacker can complete the authorization code flow using stolen authorization codes Client impersonation: Attacker can make requests. Any RabbitMQ deployment with: This issue is fixed in versions 4.3.3 and 4.2.9.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 29, 2026	Reserved	Reserved by GitHub_M
September 25, 2026	Published	Published (CNA: GitHub_M)
October 8, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-67410 (rabbitmq-server). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
rabbitmq	rabbitmq-server	—	>= 4.3.0, < 4.3.3	—

Weaknesses

CWE-200

References (5)

https://github.com/rabbitmq/rabbitmq-server/commit/60a85d3605ebf94fd234497242812547d441d457 [Patch]
https://github.com/rabbitmq/rabbitmq-server/commit/869f800998334bb363f2ad046f58de9caedc409e [Patch]
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9 [Release Notes]
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3 [Release Notes]
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f9f2-q3jf-wfj3 [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-67410 at cve.org

Vendors: rabbitmq

Weaknesses: CWE-200

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67410 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.