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{"affected_release": [{"advisory": "RHSA-2026:48273", "cpe": "cpe:/a:redhat:hummingbird:1", "package": "nodejs26-main-26.5.1-1.5.hum1", "product_name": "Red Hat Hardened Images", "release_date": "2026-07-29T00:00:00Z"}], "bugzilla": {"description": "nodejs: Node.js: mTLS client identities can be reused due to HTTPS Agent connection flaw", "id": "2509179", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509179"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N", "status": "verified"}, "cwe": "CWE-303", "details": ["A flaw was found in Node.js. The HTTPS Agent, responsible for managing secure connections, can incorrectly reuse client identities across different requests. This occurs due to a technical issue with PFX object-array key collisions during connection reuse. As a result, a client's identity, established through mutual TLS (mTLS) authentication, could be mistakenly applied to another request, potentially leading to unauthorized access or identity spoofing."], "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-2026-56850", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "nodejs22", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "nodejs24", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "nodejs:22/nodejs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "nodejs:24/nodejs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "nodejs:22/nodejs", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "nodejs:24/nodejs", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "nodejs20", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "nodejs22", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "nodejs24", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "nodejs25", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-07-30T06:02:50Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-56850\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-56850\nhttps://nodejs.org/en/blog/vulnerability/july-2026-security-releases"], "statement": "This Moderate flaw in Node.js allows mutual TLS (mTLS) client identities to be reused across requests due to a connection reuse issue within the HTTPS Agent. This can lead to unintended identity confusion if applications are configured to use different client certificates with reused connections, potentially enabling unauthorized access within the mTLS context.", "threat_severity": "Moderate"}

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