CVE-2026-49975

CVE-2026-49975: Apache HTTP Server: mod_http2 denial of service

Vendor Apache Software Foundation

Product Apache HTTP Server

Weakness CWE-789

Published June 8, 2026

Last update June 9, 2026

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CVSS base score

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What the vulnerability does

Description

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

Key dates

Disclosure timeline

June 8, 2026 CVE published

June 9, 2026 Record updated