CVE-2024-27316

CVE-2024-27316: Apache HTTP Server: HTTP/2 DoS by memory exhaustion on endless continuation frames

Vendor Apache Software Foundation
Product Apache HTTP Server
Weakness CWE-770 · Uncontrolled resource consumption
Published April 4, 2024
Last update November 4, 2025

CVSS base score

What the vulnerability does

Description

HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.

Key dates

Disclosure timeline

April 4, 2024 CVE published
November 4, 2025 Record updated