CLEANSTART-2026-XH38250 Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments

CVE-2026-59969 affects multiple packages. Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. See references for individual vulnerability details...

CLEANSTART-2026-JQ32755 Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments

Security vulnerability affects the spark package. Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments...

BIT-RABBITMQ-2026-66076 RabbitMQ: Cross-vhost quorum-queue status and stream tracking disclosure

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

MIRROR: Multipath Quorum Integrity for LLM Multi-Agent Communication

Inter-agent communication is central to Large Language Model Multi-Agent Systems LLM-MAS, but it introduces an underexplored vulnerability: Agent-in-the-Middle AiTM attacks that manipulate messages in transit without compromising the agents themselves. Prior work reports Attack Success Rates ASR...

PT-2026-105161

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, is authorized/2 calls rabbit mgmt util:is authorized/2, which checks only the management tag, instead of is authorized vhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the...

SUSE CVE-2026-66076

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

CVE-2026-66076

A flaw was found in RabbitMQ. An authorization bypass vulnerability allows a management-tagged user to read Raft status, including leader, members, term, and commit index, for quorum queues in inaccessible virtual hosts vhosts. This exposes sensitive cross-tenant queue names and cluster topology...

Beyond Centralized Policy Decision Points: Decentralized Sticky Policy Authorization through Evidence Quorums

Sticky policies remain attached to protected data so that access restrictions can persist across systems, yet request-time authorization often still depends on a centralized Trusted Authority or Policy Decision Point PDP. This paper presents SPEAR-Q, a decentralized framework in which independent...

DEBIAN-CVE-2026-66076

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

CVE-2026-66076

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

CVE-2026-66076 RabbitMQ: Cross-vhost quorum-queue status and stream tracking disclosure

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

CVE-2026-66076 RabbitMQ: Cross-vhost quorum-queue status and stream tracking disclosure

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

CVE-2026-66076

The RabbitMQ messaging and streaming broker is vulnerable to a cross-vhost information disclosure issue in versions prior to 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0 . The root cause is that the is_authorized/2 function calls rabbit_mgmt_util:is_authorized/2, which incorrectly checks only the ma...

CVE-2026-66076 RabbitMQ: Cross-vhost quorum-queue status and stream tracking disclosure

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, isauthorized/2 calls rabbitmgmtutil:isauthorized/2, which checks only the management tag, instead of isauthorizedvhost/2. The /api/queues/quorum/:vhost/:queue/status handler reads the vhost...

BIT-ZOOKEEPER-2026-59969 Apache ZooKeeper: Improper validation of certificate with host mismatch in FIPS mode

Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enabled, the Java SSLSocket quorum path accepts a CA-trusted pe...

PT-2026-95844

Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enabled, the Java SSLSocket quorum path accepts a CA-trusted pe...

Improper Validation of Certificate with Host Mismatch

Overview org.apache.zookeeper:zookeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the...

CVE-2026-59969

Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enabled, the Java SSLSocket quorum path accepts a CA-trusted pe...

DEBIAN-CVE-2026-59969

Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enabled, the Java SSLSocket quorum path accepts a CA-trusted pe...

CVE-2026-59969

Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enabled, the Java SSLSocket quorum path accepts a CA-trusted pe...