CVE-2026-33997

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Prior to version 29.3.1, a security vulnerability has been detected that allows plugins privilege validation to be bypassed during docker plugin install. Due to an error in the daemon's privilege comparison logic, the daemon may incorrectly accept a privilege set that differs from the one approved by the user. Plugins that request exactly one privilege are also affected, because no comparison is performed at all. This issue has been patched in version 29.3.1."}, {"lang": "es", "value": "Moby es un framework de contenedor de c\u00f3digo abierto. Antes de la versi\u00f3n 29.3.1, se ha detectado una vulnerabilidad de seguridad que permite omitir la validaci\u00f3n de privilegios de los plugins durante docker plugin install. Debido a un error en la l\u00f3gica de comparaci\u00f3n de privilegios del demonio, este puede aceptar incorrectamente un conjunto de privilegios que difiere del aprobado por el usuario. Los plugins que solicitan exactamente un privilegio tambi\u00e9n se ven afectados, porque no se realiza ninguna comparaci\u00f3n en absoluto. Este problema ha sido parcheado en la versi\u00f3n 29.3.1."}], "id": "CVE-2026-33997", "lastModified": "2026-09-09T13:19:32.963", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.7, "impactScore": 6.0, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33997", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-01T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-03-31T03:15:57.523", "references": [{"source": "security-advisories@github.com", "tags": ["Release Notes"], "url": "https://github.com/moby/moby/releases/tag/docker-v29.3.1"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:21769"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:22347"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:23345"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-33997"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453277"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33997.json"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-266"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "moby: docker: github.com/moby/moby: Moby: Privilege validation bypass during plugin installation", "id": "2453277", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453277"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-266", "details": ["Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows plugins privilege validation to be bypassed during docker plugin install. Due to an error in the daemon's privilege comparison logic, the daemon may incorrectly accept a privilege set that differs from the one approved by the user. Plugins that request exactly one privilege are also affected, because no comparison is performed at all. This issue has been patched in version 29.3.1.", "A flaw was found in Moby, an open-source container framework. This vulnerability allows for a privilege validation bypass during `docker plugin install`. Due to an error in the daemon's privilege comparison logic, the system may incorrectly accept a plugin's requested privileges that differ from those approved by the user. This could lead to unauthorized privilege escalation for installed plugins."], "name": "CVE-2026-33997", "package_state": [{"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Affected", "package_name": "multicluster-engine/assisted-service-8-rhel8", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Affected", "package_name": "multicluster-engine/assisted-service-9-rhel9", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_globalhub", "fix_state": "Affected", "package_name": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product_name": "Multicluster Global Hub"}, {"cpe": "cpe:/a:redhat:service_mesh:2", "fix_state": "Not affected", "package_name": "openshift-service-mesh/istio-rhel8-operator", "product_name": "OpenShift Service Mesh 2"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Affected", "package_name": "rhacm2/acm-grafana-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-agent-installer-api-server-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-agent-installer-api-server-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift4/ose-console", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Affected", "package_name": "container-native-virtualization/hostpath-provisioner-operator-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}], "public_date": "2026-03-31T01:36:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-33997\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-33997\nhttps://github.com/moby/moby/releases/tag/docker-v29.3.1\nhttps://github.com/moby/moby/security/advisories/GHSA-pxq6-2prw-chj9"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,29.3.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "moby", "source": "cna", "vendor": "moby"}, "product": "moby", "vendor": "moby"}], "analysis": {"en": {"generated_at": "2026-04-03T20:52:04.923954+00:00", "value": {"mitigation_remediation": ["Upgrade Moby to version 29.3.1 or later"], "summary": {"action": "Patch immediately", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "All installations of Moby prior to version 29.3.1 are impacted. This includes any Docker\u2011compatible daemon running the Moby framework, regardless of operating system, as the vulnerability relies solely on the daemon\u2019s internal privilege\u2011checking logic.", "description_and_impact": "Moby is an open source container framework in which a flaw in the daemon\u2019s privilege comparison logic allows the daemon to accept a privilege set that differs from the one approved by the user. For plugins that request exactly one privilege, no comparison is performed at all. An attacker who can supply a plugin to the daemon could therefore install a plugin with elevated privileges without authorization, potentially enabling the execution of arbitrary code or the escalation of privileges within the host environment.", "risk_and_exploitability": "The CVSS score of 6.8 signifies a medium severity risk, while an EPSS score of less than 1% indicates that exploitation is currently unlikely. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog, further supporting a low current threat level. The likely attack vector is inferred to be local or privileged, as an attacker must be able to add a plugin to the daemon to exploit the flaw."}}}}, "created": "2026-03-31T19:56:29.512563+00:00", "updated": "2026-04-03T21:17:47.883406+00:00", "vendors": ["moby", "moby$PRODUCT$moby"]}