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High 1 exploited CVE DLA-3621-1 2 CVEs

nghttp2 - security update

Published Oct 16, 2023 · Updated Mar 9, 2026

Fixed packages 1

ReleasePackageFixed in
Debian · 10 nghttp2 1.36.0-2+deb10u2

Vulnerabilities 2

  • High 7.5
    CVE-2023-44487 Exploited Public exploit EPSS 100%

    HTTP/2 Stream Cancellation Attack

    The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

    KEV Oct 10, 2023
  • Low 3.7

    Denial of service in nghttp2

    In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) o…