CVE-2026-67410 RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint

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 oauthclientsecre...

CVE-2026-67410

RabbitMQ, a messaging and streaming broker, is vulnerable to an OAuth2 Client Secret exposure (CWE-200) in versions 4.2.0 until 4.3.3 and 4.2.9 . When OAuth2 authentication is enabled for the Management UI using a flow that requires a client secret, the oauthclientsecret configuration value is in...

CVE-2026-67410 RabbitMQ: OAuth2 Client Secret Exposed via Unauthenticated JavaScript Endpoint

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 oauthclientsecre...

EUVD-2026-87159

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CWE-252. the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response...

CVE-2026-67409 RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CWE-252. the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response...

CVE-2026-67409 RabbitMQ: JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18, JWKS Fetch Ignores HTTP Response Status Code - Signing Key Destruction Causes Authentication DoS CWE-252. the JWKS key fetching mechanism in uaajwt.erl does not validate the HTTP response...

CVE-2026-67409

The messaging broker RabbitMQ is vulnerable to a Denial of Service (DoS) attack (CWE-252) in versions 3.13.0 through 4.3.3, 4.2.9, 4.1.14, 4.0.23, and 3.13.18. The root cause is that the JWKS key fetching mechanism in uaajwt.erl fails to validate the HTTP response status code when downloading sig...

EUVD-2026-87158

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, OAuth2 isintegerExp guard skips token-expiry checks for float exp. validatetokenexpiry/1 lines 208-214 and expirytimestamp/1 138-144 both guard with 'when isintegerExp' and fall through to ok/never for float values...

CVE-2026-67242

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, OAuth2 isintegerExp guard skips token-expiry checks for float exp. validatetokenexpiry/1 lines 208-214 and expirytimestamp/1 138-144 both guard with 'when isintegerExp' and fall through to ok/never for float values...

CVE-2026-67242 RabbitMQ: OAuth2 is_integer(Exp) guard skips token-expiry checks for float exp

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, OAuth2 isintegerExp guard skips token-expiry checks for float exp. validatetokenexpiry/1 lines 208-214 and expirytimestamp/1 138-144 both guard with 'when isintegerExp' and fall through to ok/never for float values...

CVE-2026-67242 RabbitMQ: OAuth2 is_integer(Exp) guard skips token-expiry checks for float exp

RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, OAuth2 isintegerExp guard skips token-expiry checks for float exp. validatetokenexpiry/1 lines 208-214 and expirytimestamp/1 138-144 both guard with 'when isintegerExp' and fall through to ok/never for float values...

CVE-2026-67242

The rabbitmq-server messaging broker contains an authentication bypass vulnerability in versions 4.2.0 through 4.2.8 and 4.3.3 . When configured with OAuth 2.0 authentication, the software fails to properly validate token expiration timestamps if they are represented as floating-point numbers (pe...

CVE-2026-66071 RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom to convert to a tag atom. The token signature is...

CVE-2026-66071

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom to convert to a tag atom. The token signature is...

CVE-2026-66071

The messaging and streaming broker RabbitMQ is vulnerable to Atom exhaustion in versions 3.13.0 through 3.13.15 , 4.0.22 , 4.1.11 , 4.2.6 , and 4.3.1 . The root cause is located in extractscopes/1, which parses scopes of the form .tag: and calls rabbitdatacoercion:toatom() to convert them into ta...

CVE-2026-66071 RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom to convert to a tag atom. The token signature is...

EUVD-2026-87151

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom to convert to a tag atom. The token signature is...

CVE-2026-66071 RabbitMQ: Atom exhaustion: OAuth2 JWT tag: scope values

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.22 and 4.1.11 and 4.2.6 and 4.3.1, Atom exhaustion: OAuth2 JWT tag: scope values. extractscopes/1 parses scopes of the form .tag: and calls rabbitdatacoercion:toatom to convert to a tag atom. The token signature is...

BIT-OAUTH2-PROXY-2026-76835 OAuth2 Proxy 7.15.2 through 7.15.4 Authentication Bypass via X-Forwarded-Uri Under the Default Trusted Proxy Set

OAuth2 Proxy honours a client-supplied X-Forwarded-Uri header when deciding whether a request may skip authentication, because the guard added for CVE-2026-40575 is inert in the default reverse-proxy configuration. GetRequestURI in pkg/requests/util/util.go prefers that header over the real reque...

CVE-2026-92288

Lemonldap::NG::Portal versions from 2.20.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow unauthenticated OAuth2 token introspection because checkEndPointAuthenticationCredentials does not verify the client secret of a public Relying Party. checkEndPointAuthenticationCredentials skips th...