CVE-2026-34059

HIGH7.5EPSS 0.11%

Apache HTTP Server: mod_proxy_ajp: Heap Over-Read and memory disclosure in ajp_parse_data()

Published: 5/4/2026Modified: 5/13/2026

Description

Buffer Over-read vulnerability in Apache HTTP Server. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

Affected packages (3)

Alpine/apache2from 0, < 2.4.67-r0
Bitnami/apachefrom 0, < 2.4.67
Debian/apache2from 0, < 2.4.67-1~deb11u1

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References (5)

ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2026-34059
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-34059
WEBhttps://httpd.apache.org/security/vulnerabilities_24.html
WEBhttps://nvd.nist.gov/vuln/detail/CVE-2026-34059
WEBhttp://www.openwall.com/lists/oss-security/2026/05/04/17