CVE-2026-2733

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Esto debilita los controles administrativos y podr\u00eda permitir un acceso no intencionado a los recursos del registro de contenedores."}], "id": "CVE-2026-2733", "lastModified": "2026-06-17T10:31:37.293", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.8, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 2.5, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-2733", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-19T21:31:08.199908Z", "version": "2.0.3"}}]}, "published": "2026-02-19T08:16:17.980", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:3947"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2026:3948"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-2733"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2440895"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"bugzilla": {"description": "org.keycloak/keycloak-services: Keycloak: Missing Check on Disabled Client for Docker Registry Protocol", "id": "2440895", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2440895"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-285", "details": ["A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client \u201cEnabled\u201d setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-2733", "package_state": [{"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "package_name": "rhbk/keycloak-operator-bundle", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "rhbk/keycloak-rhel9", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Fix deferred", "package_name": "rhbk/keycloak-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Fix deferred", "package_name": "keycloak-services", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Fix deferred", "package_name": "keycloak-services", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Fix deferred", "package_name": "keycloak-services", "product_name": "Red Hat Single Sign-On 7"}], "public_date": "2026-02-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-2733\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-2733"], "statement": "The security impact of this vulnerability is rated as Low (CVSS 3.8) because successful exploitation requires valid user credentials and knowledge of the Docker client ID. While the issue does not allow privilege escalation beyond the authenticated user\u2019s permissions, it undermines an important administrative control. By continuing to issue tokens for a disabled client, the system fails to properly enforce authorization state, potentially resulting in unintended access to protected container images.", "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 98.0, "source": "matching"}]}, "original": {"product": "Red Hat Build of Keycloak", "source": "cna", "vendor": "Red Hat"}, "product": "build_of_keycloak", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 97.0, "source": "matching"}]}, "original": {"product": "Red Hat JBoss Enterprise Application Platform 8", "source": "cna", "vendor": "Red Hat"}, "product": "jboss_enterprise_application_platform", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 99.0, "source": "matching"}]}, "original": {"product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "source": "cna", "vendor": "Red Hat"}, "product": "jboss_enterprise_application_platform_expansion_pack", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 93.0, "source": "matching"}]}, "original": {"product": "Red Hat Single Sign-On 7", "source": "cna", "vendor": "Red Hat"}, "product": "single_sign-on", "vendor": "redhat"}], "analysis": {"en": {"generated_at": "2026-04-16T17:03:12.946406+00:00", "value": {"mitigation_remediation": ["Apply the Red\u202fHat errata RHSA\u20112026:3947 or RHSA\u20112026:3948 to update Keycloak and related JBoss components.", "After installation, confirm that token issuance fails for disabled Docker registry clients by attempting a test token request in the Keycloak administrative console.", "Revoke any tokens that were issued before the update to eliminate ongoing unauthorized access."], "summary": {"action": "Assess Impact", "impact": "Authorization bypass allowing token issuance after a Docker registry client is disabled"}, "threat_synthesis": {"affected_systems": "Red\u202fHat\u202fBuild\u202fof\u202fKeycloak, Red\u202fHat\u202fJBoss\u202fEnterprise\u202fApplication\u202fPlatform\u202f8, Red\u202fHat\u202fJBoss\u202fEnterprise\u202fApplication\u202fPlatform\u202fExpansion\u202fPack, Red\u202fHat\u202fSingle\u202fSign\u2011On\u202f7, Red\u202fHat\u202fBuild\u202fof\u202fKeycloak\u202f26.4, and Red\u202fHat\u202fBuild\u202fof\u202fKeycloak\u202f26.4.10.", "description_and_impact": "A flaw in Keycloak\u2019s Docker v2 authentication endpoint permits tokens to be issued even after an administrator disables a Docker registry client, meaning previously valid credentials can continue to procure authentication tokens. The vulnerability weakens administrative controls by allowing unauthorized access to container registry resources. It is an authorization weakness, classified as CWE\u2011285. There is no indication of code execution or denial\u2011of\u2011service potential; the impact is limited to unauthorized access.", "risk_and_exploitability": "The CVSS score of 3.8 indicates a low severity impact, and the EPSS probability of less than 1\u202f% shows a very low likelihood of exploitation at present. It is not listed in the KEV catalog, suggesting it has not been widely exploited. The likely attack scenario involves a compromised or legitimate user continuing to obtain tokens via the Docker registry protocol even after the client is disabled, so the vulnerability is exploitable with minimal effort and without additional privileges."}}}}, "created": "2026-02-20T10:11:28.221999+00:00", "updated": "2026-04-16T17:15:17.974452+00:00", "vendors": ["redhat", "redhat$PRODUCT$build_of_keycloak", "redhat$PRODUCT$jboss_enterprise_application_platform", "redhat$PRODUCT$jboss_enterprise_application_platform_expansion_pack", "redhat$PRODUCT$single_sign-on"]}