CVE-2026-67404

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, When no CA bundle is available, ssloptions/1 falls back to verify, verifynone with no warning. An attacker in a man-in-the-middle position can forge the JWKS response, which leads the broker...

CVE-2026-67220

Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0 , RabbitMQ is vulnerable to a cross-tenant Denial of Service (DoS) due to atom exhaustion. When creating a binding on an x-jms-topic exchange , the add_binding/3 function processes the rjms_erlang_selector argument using erl_scan:string/...

CVE-2026-67220

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, 4.3.0, When a binding is created on an x-jms-topic exchange, addbinding/3 reads the rjmserlangselector argument and passes it through erlscan:string/1 then erlparse:parseterm/1. erlscan:string/1 intern...

CVE-2026-67220 RabbitMQ: JMS topic exchange erl_scan atom exhaustion

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, 4.3.0, When a binding is created on an x-jms-topic exchange, addbinding/3 reads the rjmserlangselector argument and passes it through erlscan:string/1 then erlparse:parseterm/1. erlscan:string/1 intern...

CVE-2026-67220 RabbitMQ: JMS topic exchange erl_scan atom exhaustion

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, 4.3.0, When a binding is created on an x-jms-topic exchange, addbinding/3 reads the rjmserlangselector argument and passes it through erlscan:string/1 then erlparse:parseterm/1. erlscan:string/1 intern...

CVE-2026-67224 RabbitMQ: Admin path-traversal write via trace name

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, The trace consumer constructs the output path as filename:joinTraceDir, Name ++ ".log" where Name comes from PUT /api/traces/:vhost/:name. No saferelativepath / traversal check is applied on...

CVE-2026-67224

RabbitMQ (prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1 ) is vulnerable to a path-traversal write flaw in the tracing plugin . The issue exists because the trace consumer fails to apply a safe_relative_path check on the write side when constructing output paths from the PUT /api/tra...

CVE-2026-67224

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, The trace consumer constructs the output path as filename:joinTraceDir, Name ++ ".log" where Name comes from PUT /api/traces/:vhost/:name. No saferelativepath / traversal check is applied on...

CVE-2026-67224 RabbitMQ: Admin path-traversal write via trace name

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.1, The trace consumer constructs the output path as filename:joinTraceDir, Name ++ ".log" where Name comes from PUT /api/traces/:vhost/:name. No saferelativepath / traversal check is applied on...

CVE-2026-66077

RabbitMQ versions prior to 3.13.15 , 4.0.20 , 4.1.11 , and 4.2.6 are vulnerable to Stored XSS via the management UI. The issue stems from the use of EJS 1.0 , where specific templates (connection.ejs and streamConnection.ejs) render the TLS peer-certificate Subject DN without HTML escaping. If a ...

CVE-2026-66077 RabbitMQ: Stored XSS via TLS peer-certificate DN in management UI

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6, The management UI uses EJS 1.0 in which does NOT HTML-escape. connection.ejs:135 renders and peercertissuer directly into the page. The same pattern appears in streamConnection.ejs:102,106,110. The...

CVE-2026-66077

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6, The management UI uses EJS 1.0 in which does NOT HTML-escape. connection.ejs:135 renders and peercertissuer directly into the page. The same pattern appears in streamConnection.ejs:102,106,110. The...

CVE-2026-66079

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6, parsearrayprimitive/2 for constructor 0x45 list0 returns an element with byte-width B = 0. The enclosing array32 parser at line 148 reads a 4-byte Count from the wire and loops Count times consumin...

CVE-2026-66079 RabbitMQ: Pre-auth AMQP 1.0 array32 zero-width element DoS

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6, parsearrayprimitive/2 for constructor 0x45 list0 returns an element with byte-width B = 0. The enclosing array32 parser at line 148 reads a 4-byte Count from the wire and loops Count times consumin...

CVE-2026-66079

Prior to versions 3.13.15 , 4.0.20 , 4.1.11 , and 4.2.6 , RabbitMQ is vulnerable to a Denial of Service (DoS) attack due to an issue in the parse_array_primitive/2 function. The parser incorrectly handles constructor 0x45 (list0) , returning an element with a byte-width of zero. This allows an un...

CVE-2026-66070

RabbitMQ is a messaging and streaming broker containing a vulnerability in the rabbit_mgmt_cors.erl component. Prior to versions 3.13.17, 4.0.22, 4.1.13, and 4.2.6 , the match_origin/1 function incorrectly reflected the request Origin while allowing credentials when a wildcard (*) was configured....

CVE-2026-66070

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.17, 4.0.22, 4.1.13, and 4.2.6, matchorigin/1 returned the bare reflected Origin and allowed credentials even when the wildcard "" was configured, so the response echoed the attacker's origin together with...

CVE-2026-66070 RabbitMQ: CORS * reflects Origin with Allow-Credentials

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.17, 4.0.22, 4.1.13, and 4.2.6, matchorigin/1 returned the bare reflected Origin and allowed credentials even when the wildcard "" was configured, so the response echoed the attacker's origin together with...

CVE-2026-66070 RabbitMQ: CORS * reflects Origin with Allow-Credentials

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.17, 4.0.22, 4.1.13, and 4.2.6, matchorigin/1 returned the bare reflected Origin and allowed credentials even when the wildcard "" was configured, so the response echoed the attacker's origin together with...

CVE-2026-67238

RabbitMQ versions prior to 4.2.7 and 4.3.1 are vulnerable to a Denial of Service (DoS) condition due to atom-table exhaustion . The root cause lies in the rabbit_pid_codec:decompose_from_binary/1 function, which parses a caller-supplied ETF-encoded binary and calls binary_to_atom(Node, utf8) on t...