CVE-2026-73636

Authentication bypass by capture-replay in mod_auth_digest in Apache Software Foundation Apache HTTP Server 2.4.x on all platforms allows a man-in-the-middle (MITM) attacker to replay captured digest authentication credentials via crafted requests that trigger garbage collection of the client's shared memory entry when AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://httpd.apache.org/security/vulnerabilities_24.html	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/10/01/27	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

History

05 Oct 2026, 17:45

Type	Values Removed	Values Added
CPE		cpe:2.3:a:apache:http_server::::::::
References	~~() https://httpd.apache.org/security/vulnerabilities_24.html -~~	() https://httpd.apache.org/security/vulnerabilities_24.html - Vendor Advisory
References	~~() http://www.openwall.com/lists/oss-security/2026/10/01/27 -~~	() http://www.openwall.com/lists/oss-security/2026/10/01/27 - Mailing List, Third Party Advisory
First Time		Apache Apache http Server

01 Oct 2026, 21:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/10/01/27 -

01 Oct 2026, 20:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1

01 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 17:17

Updated : 2026-10-05 17:45

NVD link : CVE-2026-73636

Mitre link : CVE-2026-73636

CVE.ORG link : CVE-2026-73636

JSON object : View

Products Affected

apache

http_server

CWE

CWE-294

Authentication Bypass by Capture-replay

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