CVE-2026-57220

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-57220", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-24T02:21:33.810Z", "datePublished": "2026-07-10T20:19:23.162Z", "dateUpdated": "2026-07-13T16:20:19.134Z"}, "containers": {"cna": {"title": "RabbitMQ: Stream listener does not enforce configured frame-size limit during authentication, permitting unauth'd mem-exhaust DoS", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q"}, {"name": "https://github.com/rabbitmq/rabbitmq-server/pull/16171", "tags": ["x_refsource_MISC"], "url": "https://github.com/rabbitmq/rabbitmq-server/pull/16171"}, {"name": "https://github.com/rabbitmq/rabbitmq-server/pull/16173", "tags": ["x_refsource_MISC"], "url": "https://github.com/rabbitmq/rabbitmq-server/pull/16173"}, {"name": "https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547", "tags": ["x_refsource_MISC"], "url": "https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547"}, {"name": "https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e", "tags": ["x_refsource_MISC"], "url": "https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e"}, {"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"}], "affected": [{"vendor": "rabbitmq", "product": "rabbitmq-server", "versions": [{"version": ">= 4.2.0, < 4.2.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-10T20:19:23.162Z"}, "descriptions": [{"lang": "en", "value": "RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6."}], "source": {"advisory": "GHSA-f364-87q5-j35q", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-13T16:20:13.084964Z", "id": "CVE-2026-57220", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-13T16:20:19.134Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-57220", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-13T16:20:13.084964Z"}}}], "references": [{"url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-13T16:20:08.115Z"}}], "cna": {"title": "RabbitMQ: Stream listener does not enforce configured frame-size limit during authentication, permitting unauth'd mem-exhaust DoS", "source": {"advisory": "GHSA-f364-87q5-j35q", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "rabbitmq", "product": "rabbitmq-server", "versions": [{"status": "affected", "version": ">= 4.2.0, < 4.2.6"}]}], "references": [{"url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q", "name": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/rabbitmq/rabbitmq-server/pull/16171", "name": "https://github.com/rabbitmq/rabbitmq-server/pull/16171", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/rabbitmq/rabbitmq-server/pull/16173", "name": "https://github.com/rabbitmq/rabbitmq-server/pull/16173", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547", "name": "https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e", "name": "https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6", "name": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-770", "description": "CWE-770: Allocation of Resources Without Limits or Throttling"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-10T20:19:23.162Z"}}}, "cveMetadata": {"cveId": "CVE-2026-57220", "state": "PUBLISHED", "dateUpdated": "2026-07-13T16:20:19.134Z", "dateReserved": "2026-06-24T02:21:33.810Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-10T20:19:23.162Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "rabbitmq-server", "vendor": "rabbitmq", "versions": [{"status": "affected", "version": ">= 4.2.0, < 4.2.6"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "7179C053-B8C1-4B72-83EB-456125ED1AAF", "versionEndExcluding": "4.2.6", "versionStartIncluding": "4.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6."}, {"lang": "es", "value": "RabbitMQ es un broker de mensajer\u00eda y streaming. Antes de la versi\u00f3n 4.2.6, el listener de stream de RabbitMQ no aplica el l\u00edmite de tama\u00f1o de trama de stream configurado mientras ensambla tramas durante la autenticaci\u00f3n y antes de la negociaci\u00f3n de Tune, permitiendo que un cliente remoto no autenticado declare longitudes de trama excesivas y consuma memoria del broker en rabbit_stream_core. Este problema se ha corregido en la versi\u00f3n 4.2.6."}], "id": "CVE-2026-57220", "lastModified": "2026-10-25T15:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-57220", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-13T16:20:13.084964Z", "version": "2.0.3"}}]}, "published": "2026-07-10T21:16:59.180", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547"}, {"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/pull/16171"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/rabbitmq/rabbitmq-server/pull/16173"}, {"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-f364-87q5-j35q"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "rabbitmq-server: RabbitMQ: Denial of Service via oversized stream frames", "id": "2499203", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499203"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, the RabbitMQ stream listener does not enforce the configured stream frame-size limit while assembling frames during authentication and before Tune negotiation, allowing an unauthenticated remote client to declare oversized frame lengths and consume broker memory in rabbit_stream_core. This issue is fixed in version 4.2.6.", "A flaw was found in RabbitMQ. The stream listener in RabbitMQ does not properly enforce frame-size limits during authentication and before negotiation. This allows an unauthenticated remote client to send oversized stream frames, which can consume excessive broker memory. This can lead to a denial of service (DoS) condition, making the service unavailable to legitimate users."], "name": "CVE-2026-57220", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "impact": "important", "package_name": "rabbitmq-server4.2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "impact": "important", "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": "2026-07-10T20:19:23Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-57220\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-57220\nhttps://github.com/rabbitmq/rabbitmq-server/commit/595ec28fa1621b1f2c28124e4e0466a8ad963547\nhttps://github.com/rabbitmq/rabbitmq-server/commit/773a49c4921e8be990262a2d609c35916825679e\nhttps://github.com/rabbitmq/rabbitmq-server/pull/16171\nhttps://github.com/rabbitmq/rabbitmq-server/pull/16173\nhttps://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6\nhttps://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-f364-87q5-j35q"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.2.0,4.2.6)"}}], "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": "2026-07-10T21:30:04.142917+00:00", "updated": "2026-08-01T12:15:03.437172+00:00", "vendors": ["rabbitmq", "rabbitmq$PRODUCT$rabbitmq-server"]}