{"id":"CVE-2026-67406","title":"RabbitMQ is a messaging and streaming broker","summary":"RabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, Shovel does not format state logged by the crash reporter and can leave unencrypted credentials in a crash dump file. the shovel worker gens…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-200","CWE-209"],"vendor":"broadcom","product":"rabbitmq_server","affected":["rabbitmq_server >= 4.0.0, < 4.0.23","rabbitmq_server >= 4.1.0, < 4.1.14","rabbitmq_server >= 4.2.0, < 4.2.9","rabbitmq_server >= 4.3.0, < 4.3.3"],"patched":["rabbitmq_server 4.3.3"],"published":"2026-09-25","updated":"2026-10-16","sourceUpdated":"2026-10-16T16:16:49.703","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-67406","references":[{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3","label":"security-advisories@github.com"},{"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-q44f-9vc5-grh7","label":"security-advisories@github.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-67406.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-67406"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541521"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-67406"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67406"},{"url":"https://access.redhat.com/errata/RHSA-2026:67552"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00343,"epssPercentile":0.27637,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-25T17:00:45.529742Z"},"scores":{"nvd":6.5,"cna":4.6,"vendor":5.5},"ingestedAt":"2026-09-25T17:13:14.021Z","slug":"CVE-2026-67406","body":"## Overview\n\nRabbitMQ is a messaging and streaming broker. From 4.0.0 until 4.3.3, 4.2.9, 4.1.14, and 4.0.23, Shovel does not format state logged by the crash reporter and can leave unencrypted credentials in a crash dump file. the shovel worker genserver processes does not implement the formatstatus/2 callback. When these processes crash (e.g., due to network partitions, connection failures), the OTP SASL error handler writes the full process state , including plaintext AMQP passwords and URIs , to the error log. This is particularly severe for the shovel worker, which stores deobfuscated plaintext URIs (including amqp://user:password@host format) in its genserver state for the entire process Automatic Credential Exposure: Shovel worker crashes (common during network partitions) automatically write plaintext upstream/downstream passwords to error logs No Special Configuration Needed: Unlike DEBUG logging, SASL error reports are always active Broad. This issue is fixed in versions 4.3.3, 4.2.9, 4.1.14, and 4.0.23.\n\n## Affected\n\n- `rabbitmq_server >= 4.0.0, < 4.0.23`\n- `rabbitmq_server >= 4.1.0, < 4.1.14`\n- `rabbitmq_server >= 4.2.0, < 4.2.9`\n- `rabbitmq_server >= 4.3.0, < 4.3.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `rabbitmq_server 4.3.3`\n\n## Vendor advisories\n\n- **RHSA-2026:67552** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67552)","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":230354,"id":"CVE-2026-67406","ts":1793130920112,"field":"cvss","old":"4.6","new":"6.5"}]}