CVE-2026-59898

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{"bugzilla": {"description": "io.netty/netty-codec-http: Netty: Protocol version confusion in netty-codec-http (WebSocket)", "id": "2507479", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507479"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-358", "details": ["A flaw was found in netty-codec-http. The WebSocket handshaker in this component fails to properly validate protocol version information during the WebSocket upgrade process. A remote attacker can exploit this vulnerability by manipulating the WebSocket handshake, leading to a bypass of security checks or the negotiation of unexpected protocol versions. This could potentially enable protocol-level attacks."], "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-2026-59898", "package_state": [{"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-http", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-ekb-dispatcher-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift-serverless-1/kn-ekb-receiver-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Fix deferred", 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"cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "devspaces/openvsx-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "devspaces/pluginregistry-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "devspaces/server-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "satellite:el8/candlepin", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-http", "product_name": "Red Hat Single Sign-On 7"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Out of support scope", "impact": "moderate", "package_name": "netty-codec-http", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "netty-codec-http", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-07-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-59898\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-59898\nhttps://github.com/netty/netty/security/advisories/GHSA-4mp9-239f-g9hg"], "statement": "This Moderate flaw in Netty's WebSocket handshaker, specifically within `netty-codec-http`, could allow an attacker to bypass security checks or force unexpected protocol versions during the WebSocket upgrade process. This issue primarily impacts Red Hat products that leverage Netty for WebSocket communication, potentially leading to protocol-level attacks under certain deployment configurations.", "threat_severity": "Moderate"}

{}