CVE-2026-33006

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-33006
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.

4.8 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/04/21 Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

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

04 May 2026, 20:23

Type Values Removed Values Added
First Time Apache http Server
Apache
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/2026/05/04/21 - () http://www.openwall.com/lists/oss-security/2026/05/04/21 - Mailing List, Third Party Advisory
CPE cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

04 May 2026, 19:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.8

04 May 2026, 18:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/05/04/21 -

04 May 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-04 15:16

Updated : 2026-05-04 20:23

NVD link : CVE-2026-33006

Mitre link : CVE-2026-33006

CVE.ORG link : CVE-2026-33006

JSON object : View

Products Affected

apache

  • http_server
CWE
CWE-208

Observable Timing Discrepancy