CVE-2026-112381

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{"bugzilla": {"description": "trafficserver: trafficserver: Denial of Service via race condition during request teardown", "id": "2558507", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2558507"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["Apache Traffic Server can crash with a null pointer dereference when a client POST request is torn down via half-close while a chunked origin response is being reparsed from a reentrant write-ready callback, a timing-dependent race introduced by the CVE-2021-32564 flow-control backports.\nThis issue affects Apache Traffic Server: 9.2.15, 10.1.4, 10.2.0.\nUsers are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.", "A flaw was found in Apache Traffic Server. A race condition can allow an unauthenticated remote attacker to cause a Denial of Service (DoS) by crashing the server. This vulnerability occurs when a client terminates a POST request connection while the server is processing a chunked origin response, triggering a null pointer dereference."], "mitigation": {"lang": "en:us", "value": "Upgrade to Apache Traffic Server 9.2.16 (9.x), 10.1.5 (10.1.x), or 10.2.1 (10.2.x) or later."}, "name": "CVE-2026-112381", "public_date": "2026-10-21T19:20:38Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-112381\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-112381\nhttps://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc"], "statement": "Apache Traffic Server crashes with a null pointer dereference in net_write_io when a client POST request is torn down via half-close while a chunked origin response is being reparsed from a reentrant write-ready callback; Red Hat does not ship trafficserver in any RH-scoped product \u2014 only Fedora/EPEL community streams, whose shipped versions (9.2.15, 10.2.0) are within the upstream affected range.", "threat_severity": "Moderate"}

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