Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie*

This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.

Users are recommended to upgrade to version 2.4.68, which fixes the issue.

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Fixes

Solution

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Workaround

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History

Tue, 09 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache http Server
CPEs cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
Vendors & Products Apache http Server

Mon, 08 Jun 2026 23:30:00 +0000

Type Values Removed Values Added
References

Mon, 08 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 08 Jun 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache apache Http Server
Vendors & Products Apache
Apache apache Http Server

Mon, 08 Jun 2026 15:45:00 +0000

Type Values Removed Values Added
Description Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.
Title Apache HTTP Server: ProxyPassReverseCookieMap buffer overflow
Weaknesses CWE-122
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-08T22:32:24.906Z

Reserved: 2026-03-27T11:47:04.086Z

Link: CVE-2026-34356

cve-icon Vulnrichment

Updated: 2026-06-08T22:32:24.906Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-08T16:16:38.537

Modified: 2026-06-09T16:17:19.160

Link: CVE-2026-34356

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-08T20:30:06Z

Weaknesses