Vulnerability DatabaseCVE-2026-73636
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CVE-2026-73636
Published:October 01, 2026
Updated:October 13, 2026
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.
Affected Packages
https://github.com/apache/httpd.git (GITHUB):
Affected version(s) >=2.4.0 <2.4.69
Fix Suggestion:
Update to version 2.4.69
Related Resources (2)
http://www.openwall.com/lists/oss-security/2026/10/01/27
https://httpd.apache.org/security/vulnerabilities_24.html
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CVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Authentication Bypass by Capture-replay
CWE-294
EPSS
Base Score:
0.41