CVE-2026-107386

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{"affected": [{"affectedData": [{"product": "amqp091-go", "vendor": "rabbitmq", "versions": [{"status": "affected", "version": ">= 1.13.0, < 1.14.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "amqp091-go is a Go AMQP 0.9.1 client. From 1.13.0 until 1.14.0, the frame-size mitigation from the prior allocation advisory can be bypassed before connection.tune completes because Connection.maxFrameSize uses zero for both the not-yet-negotiated and negotiated-unlimited states. A malicious or compromised AMQP peer can send a short body-frame header with a large declared payload length, causing ReadFrame and the body-frame parser to allocate attacker-selected memory before the payload is received or the frame's protocol state is rejected. The condition is reachable through public Open even when Config.FrameSize is set to the protocol minimum and can cause severe memory pressure, out-of-memory termination, or loss of the client process before authentication completes. This issue is fixed in version 1.14.0."}], "id": "CVE-2026-107386", "lastModified": "2026-10-09T16:17:22.590", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-107386", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-08T20:23:14.862830Z", "version": "2.0.3"}}]}, "published": "2026-10-08T19:17:01.347", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/rabbitmq/amqp091-go/commit/6723e8cff8710f0a6bf5fb4af375e285052535b3"}, {"source": "security-advisories@github.com", "url": "https://github.com/rabbitmq/amqp091-go/pull/377"}, {"source": "security-advisories@github.com", "url": "https://github.com/rabbitmq/amqp091-go/releases/tag/v1.14.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-w6r9-248c-frg8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2026:80217", "cpe": "cpe:/a:redhat:hummingbird:1", "package": "opentelemetry-collector-contrib-main-0.162.0-0.2.hum1", "product_name": "Red Hat Hardened Images", "release_date": "2026-10-09T00:00:00Z"}], "bugzilla": {"description": "github.com/rabbitmq/amqp091-go: amqp091-go: Denial of Service via excessive memory allocation during frame parsing", "id": "2548205", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2548205"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-770", "details": ["amqp091-go is a Go AMQP 0.9.1 client. From 1.13.0 until 1.14.0, the frame-size mitigation from the prior allocation advisory can be bypassed before connection.tune completes because Connection.maxFrameSize uses zero for both the not-yet-negotiated and negotiated-unlimited states. A malicious or compromised AMQP peer can send a short body-frame header with a large declared payload length, causing ReadFrame and the body-frame parser to allocate attacker-selected memory before the payload is received or the frame's protocol state is rejected. The condition is reachable through public Open even when Config.FrameSize is set to the protocol minimum and can cause severe memory pressure, out-of-memory termination, or loss of the client process before authentication completes. This issue is fixed in version 1.14.0.", "A flaw was found in amqp091-go. A malicious server or remote peer can cause a Denial of Service (DoS) by sending a crafted frame header declaring an excessively large payload size during initial connection setup. This flaw causes the client to allocate large amounts of memory before validating the frame or completing authentication, resulting in memory exhaustion and termination of the client process."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-107386", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Not affected", "package_name": "cryostat/cryostat-storage-rhel9", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:openshift_custom_metrics_autoscaler:2", "fix_state": "Not affected", "package_name": "custom-metrics-autoscaler/custom-metrics-autoscaler-adapter-rhel9", "product_name": "Custom Metric Autoscaler operator for Red Hat Openshift"}, {"cpe": "cpe:/a:redhat:openshift_custom_metrics_autoscaler:2", "fix_state": "Not affected", "package_name": "custom-metrics-autoscaler/custom-metrics-autoscaler-admission-webhooks-rhel9", "product_name": "Custom Metric Autoscaler operator for Red Hat Openshift"}, {"cpe": "cpe:/a:redhat:openshift_custom_metrics_autoscaler:2", "fix_state": "Not affected", "package_name": "custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9", "product_name": "Custom Metric Autoscaler operator for Red Hat Openshift"}, {"cpe": "cpe:/a:redhat:openshift_custom_metrics_autoscaler:2", "fix_state": "Not affected", "package_name": "custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator", "product_name": "Custom Metric Autoscaler operator for Red Hat Openshift"}, {"cpe": "cpe:/a:redhat:multicluster_globalhub", "fix_state": "Not affected", "package_name": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product_name": "Multicluster Global Hub"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Not affected", "package_name": "openshift-serverless-1/kn-plugin-event-sender-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/acm-grafana-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/volsync-operator-bundle", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/volsync-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Not affected", "package_name": "rhoso-operators/rabbitmq-cluster-rhel9-operator", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Fix deferred", "package_name": "quay/clair-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Fix deferred", "package_name": "quay/clair-rhel9", "product_name": "Red Hat Quay 3"}], "public_date": "2026-10-08T18:54:12Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-107386\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-107386\nhttps://github.com/rabbitmq/amqp091-go/commit/6723e8cff8710f0a6bf5fb4af375e285052535b3\nhttps://github.com/rabbitmq/amqp091-go/pull/377\nhttps://github.com/rabbitmq/amqp091-go/releases/tag/v1.14.0\nhttps://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-w6r9-248c-frg8"], "statement": "A flaw was found in the amqp091-go Go AMQP 0.9.1 client library. In version 1.13.0, the frame-size mitigation introduced for a prior allocation vulnerability (GHSA-r9c8-gcjp-xfwh) can be bypassed before connection.tune negotiation completes. This occurs because Connection.maxFrameSize uses a zero value to represent both the \"not yet negotiated\" and \"negotiated unlimited\" states, causing the frame-size check to be skipped during the pre-negotiation window. A malicious or compromised AMQP broker, or a man-in-the-middle attacker, can send a crafted body-frame header with a large declared payload length, causing the client to allocate attacker-controlled amounts of memory before authentication completes. This can result in severe memory pressure, out-of-memory termination, or loss of the client process. The vulnerability is only present in version 1.13.0 and is fixed in version 1.14.0.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.13.0,1.14.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "amqp091-go", "source": "cna", "vendor": "rabbitmq"}, "product": "amqp091-go", "vendor": "rabbitmq"}], "created": "2026-10-08T21:00:11.671016+00:00", "updated": "2026-10-08T21:00:14.221508+00:00", "vendors": ["rabbitmq", "rabbitmq$PRODUCT$amqp091-go"]}