CVE-2026-73637

Use after free in mod_auth_digest in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an unauthenticated remote client to cause authentication state corruption via concurrent Digest authentication requests when AuthDigestNcCheck is enabled or AuthDigestNonceLifetime is set to 0. Users are recommended to upgrade to version 2.4.69, which fixes this issue.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://httpd.apache.org/security/vulnerabilities_24.html	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/10/01/28	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

05 Oct 2026, 17:39

Type	Values Removed	Values Added
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/2026/10/01/28 -~~	() http://www.openwall.com/lists/oss-security/2026/10/01/28 - Mailing List, Third Party Advisory
First Time		Apache Apache http Server
CPE		cpe:2.3:a:apache:http_server::::::::

01 Oct 2026, 21:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/10/01/28 -

01 Oct 2026, 20:17

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.3

01 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 17:17

Updated : 2026-10-05 17:39

NVD link : CVE-2026-73637

Mitre link : CVE-2026-73637

CVE.ORG link : CVE-2026-73637

JSON object : View

Products Affected

apache

http_server

CWE

CWE-416

Use After Free

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