CVE-2026-56449: Apache HTTP Server: mod_proxy_html: crash in dump_content

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-01 · updated 2026-10-21
Weakness: CWE-787

Description

Out-of-bounds Write vulnerability in Apache HTTP Server's mod_proxy_html with crafted HTTP response bodies. This issue affects Apache HTTP Server version 2.4.68.

Affected products

Apache HTTP Server: from 2.4.0 before 2.4.69 — fixed in 2.4.69

How to fix

Upgrade to a fixed version: Apache HTTP Server 2.4.69. Check the vendor advisory for mitigations.

References

https://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2026/10/01/18

Get alerted when CVE-2026-56449 or the next vulnerability affects your stack