CVE-2026-57211

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{"affected": [{"affectedData": [{"product": "rabbitmq-server", "vendor": "rabbitmq", "versions": [{"status": "affected", "version": ">= 4.2.0, < 4.2.6"}, {"status": "affected", "version": ">= 4.1.0, < 4.1.11"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "84526045-0282-4A10-93F0-FF5D342AA751", "versionEndExcluding": "4.2.6", "versionStartIncluding": "4.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6."}, {"lang": "es", "value": "RabbitMQ es un broker de mensajer\u00eda y streaming. Antes de las versiones 4.1.11 y 4.2.6 en Windows, el gestor de archivos est\u00e1ticos del plugin de gesti\u00f3n de RabbitMQ, rabbit_mgmt_wm_static, puede pasar barras invertidas codificadas en URL a erl_prim_loader:read_file_info antes de la validaci\u00f3n de la ruta cuando m\u00faltiples plugins de extensi\u00f3n de gesti\u00f3n est\u00e1n habilitados, causando solicitudes DNS y SMB salientes a rutas UNC controladas por el atacante. Este problema est\u00e1 solucionado en las versiones 4.1.11 y 4.2.6."}], "id": "CVE-2026-57211", "lastModified": "2026-10-25T15:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-57211", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-13T16:13:26.395813Z", "version": "2.0.3"}}]}, "published": "2026-07-10T21:16:58.007", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/pull/15803"}, {"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-36"}, {"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "rabbitmq: RabbitMQ: Information disclosure via path validation bypass in management plugin", "id": "2499215", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499215"}, "csaw": false, "cvss3": {"cvss3_base_score": "10.0", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-76", "details": ["RabbitMQ is a messaging and streaming broker. Prior to 4.1.11 and 4.2.6 on Windows, the RabbitMQ management plugin static file handler rabbit_mgmt_wm_static can pass URL-encoded backslashes to erl_prim_loader:read_file_info before path validation when multiple management extension plugins are enabled, causing outbound DNS and SMB requests to attacker-controlled UNC paths. This issue is fixed in versions 4.1.11 and 4.2.6.", "A flaw was found in RabbitMQ. The RabbitMQ management plugin static file handler, `rabbit_mgmt_wm_static`, on Windows can be exploited when multiple management extension plugins are enabled. An attacker can pass specially crafted URL-encoded backslashes, bypassing path validation. This can lead to outbound DNS and Server Message Block (SMB) requests to attacker-controlled network paths, potentially disclosing sensitive information."], "name": "CVE-2026-57211", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "impact": "moderate", "package_name": "rabbitmq-server4.2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "impact": "moderate", "package_name": "rabbitmq-server4.3", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "rabbitmq-server", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:17.1", "fix_state": "Not affected", "package_name": "rabbitmq-server", "product_name": "Red Hat OpenStack Platform 17.1"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Not affected", "package_name": "rabbitmq-server", "product_name": "Red Hat OpenStack Platform 18.0"}], "public_date": "2026-07-10T20:16:01Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-57211\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-57211\nhttps://github.com/rabbitmq/rabbitmq-server/commit/39c3a8e9c71da0403d8dfc13f700e60c936e3682\nhttps://github.com/rabbitmq/rabbitmq-server/commit/6730797f6a34b4e8308cea60adf1243857e70204\nhttps://github.com/rabbitmq/rabbitmq-server/pull/15803\nhttps://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6\nhttps://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-7v84-m3g5-vxq6"], "threat_severity": "Critical"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.2.0,4.2.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.1.0,4.1.11)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "rabbitmq-server", "source": "cna", "vendor": "rabbitmq"}, "product": "rabbitmq-server", "vendor": "rabbitmq"}], "created": "2026-07-10T21:30:04.143233+00:00", "updated": "2026-08-04T07:45:05.835211+00:00", "vendors": ["rabbitmq", "rabbitmq$PRODUCT$rabbitmq-server"]}