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CVE-2026-57216

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e1281dddc835a1bd9d8f9a12173a77bd7675457e14c1bcba5f7d7b1c8bf99bc7
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"rabbitmq-server","vendor":"rabbitmq","versions":[{"status":"affected","version":">= 4.2.0, < 4.2.6"},{"status":"affected","version":">= 4.1.0, < 4.1.11"},{"status":"affected","version":">= 4.0.0, < 4.0.21"},{"status":"affected","version":">= 3.13.0, < 3.13.15"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions
{"name":"https://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47","tags":["x_refsource_MISC"],"url":"https://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/references/3
{"name":"https://github.com/rabbitmq/rabbitmq-server/commit/9f8c39fcf0acbc43080ee7017a62a02832114112","tags":["x_refsource_MISC"],"url":"https://github.com/rabbitmq/rabbitmq-server/commit/9f8c39fcf0acbc43080ee7017a62a02832114112"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/references/4
{"name":"https://github.com/rabbitmq/rabbitmq-server/pull/15936","tags":["x_refsource_MISC"],"url":"https://github.com/rabbitmq/rabbitmq-server/pull/15936"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/references/1
{"name":"https://github.com/rabbitmq/rabbitmq-server/pull/15940","tags":["x_refsource_MISC"],"url":"https://github.com/rabbitmq/rabbitmq-server/pull/15940"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/references/2
{"name":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6","tags":["x_refsource_MISC"],"url":"https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/references/5
{"tags":["exploit"],"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/adp/0/references/0
{"name":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5ed28d9083f29e97633012fbda2633f9333cb44640d3cdc0e2f458f58ad06269 · sha256:72d62d3b80c7a071… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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