CVE-2026-102460

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When a user is already authenticated on the routing context by a preceding handler in the request pipeline, ChainAuthHandler skips all scope validation configured via withScope() or withScopes(). This affects both any() and all() chain modes.\n\n\n\nThe root cause is that postAuthentication() relies on internal state that is only set during the authenticate() phase, which is skipped entirely for pre-authenticated users. In any() mode, the absence of this state causes the method to fall through without delegating scope checks to any handler. In all() mode, scope checks are unconditionally skipped.\n\n\n\nThis allows a user with a valid token but insufficient scopes to access resources protected by scope requirements, provided they were authenticated by an earlier handler in the pipeline. The most common trigger is overlapping authentication handlers on nested routes, where a parent route authenticates broadly and a child route uses a chain to enforce specific scopes.\n\n\n\nThe impacted component Maven coordinate is io.vertx:vertx-web", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], a scope bypass vulnerability exists in Eclipse Vert.x Web's ChainAuthHandler when used with scope-requiring authentication handlers such as JWTAuthHandler or OAuth2AuthHandler. When a user is already authenticated on the routing context by a preceding handler in the request pipeline, ChainAuthHandler skips all scope validation configured via withScope() or withScopes(). This affects both any() and all() chain modes.</p><p>The root cause is that postAuthentication() relies on internal state that is only set during the authenticate() phase, which is skipped entirely for pre-authenticated users. In any() mode, the absence of this state causes the method to fall through without delegating scope checks to any handler. In all() mode, scope checks are unconditionally skipped.</p><p>This allows a user with a valid token but insufficient scopes to access resources protected by scope requirements, provided they were authenticated by an earlier handler in the pipeline. The most common trigger is overlapping authentication handlers on nested routes, where a parent route authenticates broadly and a child route uses a chain to enforce specific scopes.</p><p>The impacted component Maven coordinate is io.vertx:vertx-web</p>"}]}], "references": [{"url": "https://github.com/vert-x3/vertx-web/security/advisories/GHSA-2p39-cr56-w58j"}, {"url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/339"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.6, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}}], "credits": [{"lang": "en", "value": "Thomas Segismont", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-863", "lang": "en", "description": "CWE-863 Incorrect Authorization"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-16T18:21:25.890702Z", "id": "CVE-2026-102460", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T14:14:48.527Z"}}]}}

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When a user is already authenticated on the routing context by a preceding handler in the request pipeline, ChainAuthHandler skips all scope validation configured via withScope() or withScopes(). This affects both any() and all() chain modes.\n\n\n\nThe root cause is that postAuthentication() relies on internal state that is only set during the authenticate() phase, which is skipped entirely for pre-authenticated users. In any() mode, the absence of this state causes the method to fall through without delegating scope checks to any handler. In all() mode, scope checks are unconditionally skipped.\n\n\n\nThis allows a user with a valid token but insufficient scopes to access resources protected by scope requirements, provided they were authenticated by an earlier handler in the pipeline. The most common trigger is overlapping authentication handlers on nested routes, where a parent route authenticates broadly and a child route uses a chain to enforce specific scopes.\n\n\n\nThe impacted component Maven coordinate is io.vertx:vertx-web", "supportingMedia": [{"type": "text/html", "value": "<p>In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], a scope bypass vulnerability exists in Eclipse Vert.x Web's ChainAuthHandler when used with scope-requiring authentication handlers such as JWTAuthHandler or OAuth2AuthHandler. When a user is already authenticated on the routing context by a preceding handler in the request pipeline, ChainAuthHandler skips all scope validation configured via withScope() or withScopes(). This affects both any() and all() chain modes.</p><p>The root cause is that postAuthentication() relies on internal state that is only set during the authenticate() phase, which is skipped entirely for pre-authenticated users. In any() mode, the absence of this state causes the method to fall through without delegating scope checks to any handler. In all() mode, scope checks are unconditionally skipped.</p><p>This allows a user with a valid token but insufficient scopes to access resources protected by scope requirements, provided they were authenticated by an earlier handler in the pipeline. The most common trigger is overlapping authentication handlers on nested routes, where a parent route authenticates broadly and a child route uses a chain to enforce specific scopes.</p><p>The impacted component Maven coordinate is io.vertx:vertx-web</p>", "base64": false}]}], "providerMetadata": {"orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "shortName": "eclipse", "dateUpdated": "2026-10-14T18:36:41.358Z"}}}, "cveMetadata": {"cveId": "CVE-2026-102460", "state": "PUBLISHED", "dateUpdated": "2026-10-19T14:14:48.527Z", "dateReserved": "2026-09-29T08:23:57.186Z", "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c", "datePublished": "2026-10-14T18:36:41.358Z", "assignerShortName": "eclipse"}, "dataVersion": "5.2"}

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{"bugzilla": {"description": "io.vertx/vertx-web: vertx-web: Authorization bypass via ChainAuthHandler scope validation failure", "id": "2552802", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2552802"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-425", "details": ["In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], a scope bypass vulnerability exists in Eclipse Vert.x Web's ChainAuthHandler when used with scope-requiring authentication handlers such as JWTAuthHandler or OAuth2AuthHandler. When a user is already authenticated on the routing context by a preceding handler in the request pipeline, ChainAuthHandler skips all scope validation configured via withScope() or withScopes(). This affects both any() and all() chain modes.\nThe root cause is that postAuthentication() relies on internal state that is only set during the authenticate() phase, which is skipped entirely for pre-authenticated users. In any() mode, the absence of this state causes the method to fall through without delegating scope checks to any handler. In all() mode, scope checks are unconditionally skipped.\nThis allows a user with a valid token but insufficient scopes to access resources protected by scope requirements, provided they were authenticated by an earlier handler in the pipeline. The most common trigger is overlapping authentication handlers on nested routes, where a parent route authenticates broadly and a child route uses a chain to enforce specific scopes.\nThe impacted component Maven coordinate is io.vertx:vertx-web", "A flaw was found in Eclipse Vert.x Web. When chained authentication handlers are used to protect endpoints, the handler fails to validate required permission scopes if an incoming request was already authenticated by an earlier handler in the pipeline. An authenticated remote user with a valid token can exploit this vulnerability to bypass authorization controls and access restricted resources without holding the necessary permissions."], "mitigation": {"lang": "en:us", "value": "Avoid chaining authentication handlers on nested routes where parent routes pre-authenticate requests, or enforce scope validation explicitly within route handler logic rather than delegating to ChainAuthHandler."}, "name": "CVE-2026-102460", "package_state": [{"cpe": "cpe:/a:redhat:exploit_intelligence:0", "fix_state": "Affected", "package_name": "exploit-intelligence/agent-client-rhel9", "product_name": "Exploit Intelligence"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-ekb-dispatcher-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-ekb-receiver-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-ddb-streams-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-s3-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-s3-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-sns-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-sqs-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-aws-sqs-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-log-sink-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Affected", "package_name": "openshift-serverless-1/kn-eventing-integrations-timer-source-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:camel_quarkus:3", "fix_state": "Affected", "package_name": "vertx-web", "product_name": "Red Hat build of Apache Camel 4 for Quarkus 3"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "vertx-web", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:apicurio_registry:3", "fix_state": "Affected", "package_name": "vertx-web", "product_name": "Red Hat build of Apicurio Registry 3"}, {"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": "Affected", "package_name": "rhbk/keycloak-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "vertx-web", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:quarkus:3", "fix_state": "Affected", "package_name": "vertx-web", "product_name": "Red Hat build of Quarkus"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "vertx-web", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Affected", "package_name": "rhoai/odh-trustyai-service-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Affected", "package_name": "devspaces/multicluster-redirector-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}], "public_date": "2026-10-14T18:36:41Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-102460\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-102460\nhttps://github.com/vert-x3/vertx-web/security/advisories/GHSA-2p39-cr56-w58j\nhttps://gitlab.eclipse.org/security/cve-assignment/-/work_items/339"], "statement": "Red Hat rates this flaw as IMPORTANT. A flaw was found in Eclipse Vert.x Web's ChainAuthHandler when it is used with scope-requiring authentication handlers such as JWTAuthHandler or OAuth2AuthHandler. When an incoming request has already been authenticated by an earlier handler in the routing pipeline, ChainAuthHandler skips all scope validation configured via withScope() or withScopes(), in both any() and all() chain modes. An authenticated remote user with a valid token but insufficient scopes can exploit this flaw to bypass authorization controls and access restricted resources or perform actions without holding the necessary permissions. The most common trigger is overlapping authentication handlers on nested routes, where a parent route authenticates broadly and a child route uses a chain to enforce specific scopes. The Red Hat rating of IMPORTANT (CVSS 8.1) is consistent with the upstream assessment of High severity (CVSS 8.6). At the time of this assessment, no Red Hat products are listed as affected by this flaw; it concerns the upstream io.vertx:vertx-web Maven component, and no Red Hat shipping relationship has been established for it.", "threat_severity": "Important"}

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