CVE-2024-28182

Advisory lineage Upstream: 0 Downstream: 30
Modified
Published: 04 Apr 2024, 14:41
Last modified:04 Nov 2025, 18:30

Vulnerability Summary

Overall Risk (default)
medium
38/100
CVSS Score
5.3 MEDIUM
v3.1 (cve.org)
EPSS Score
84.96% CRITICAL
85% probability +59.99%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Apr 2024, 14:41
Published
Vulnerability first disclosed
04 Nov 2025, 18:30
Last Modified
Vulnerability information updated

Description

nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream. There is no workaround for this vulnerability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Trends

Current EPSS score: 84.96%• Percentile: 100%

Techniques & Countermeasures

  • CWE-770•Allocation of Resources Without Limits or Throttling

    The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

  • debian•debian_linux

    10.0 | 11.0

  • fedoraproject•fedora

    38 | 39 | 40

  • nghttp2•nghttp2

    < 1.61.0

References (10)