CVE WATCH / VULNERABILITY DETAIL
CVE-2026-123863
HIGHCVSS 8.2NVD feed
Published 11 November 2026 · tracked since 12 November 2026
Description
A reachable assertion in Node.js HTTP/2 session teardown lets any unauthenticated client abort the server, over both TLS and cleartext. A client can arrange for an Http2Stream that still holds nghttp2-allocated header buffers to outlive its session: the stream is removed from the session's stream se
References
- NVD — National Vulnerability Database
- CVE.org record (MITRE)
- CISA Known Exploited Vulnerabilities catalog
Latest tracked vulnerabilities
- CVE-2026-126184 HIGH 8.2
- CVE-2026-126183 HIGH 8.7
- CVE-2026-126181 HIGH 8
- CVE-2026-126180 HIGH 8.4
- CVE-2026-126177 HIGH 8.1
- CVE-2026-126176 HIGH 8.1
- CVE-2026-126175 HIGH 8.8
- CVE-2026-126170 CRITICAL 9.8
- CVE-2026-126165 HIGH 7.5
- CVE-2026-126164 CRITICAL 9.4