CVE-2026-42528: CWE-789 Memory Allocation with Excessive Size Value in Apache Software Foundation Apache HTTP Server
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes. Users are recommended to upgrade to version 2.4.69, which fixes this issue
AI Analysis
Technical Summary
A memory calculation bug in the mod_dav module of Apache HTTP Server versions 2.4.67 and earlier (up to 2.4.68) allows an attacker with permission to create WebDAV locks to cause a denial of service by crashing server child processes. The vulnerability is identified as CWE-789 (Memory Allocation with Excessive Size Value). The Apache Software Foundation recommends upgrading to version 2.4.69 to remediate this issue.
Potential Impact
An attacker with permission to create WebDAV locks can exploit this vulnerability to crash server child processes, resulting in denial of service conditions on affected Apache HTTP Server instances.
Mitigation Recommendations
Upgrade Apache HTTP Server to version 2.4.69 or later, which contains the fix for this vulnerability.
CVE-2026-42528: CWE-789 Memory Allocation with Excessive Size Value in Apache Software Foundation Apache HTTP Server
Description
A memory calculation bug in mod_dav in Apache httpd 2.4.67 and earlier allows an attacker with permission to create WebDAV locks to crash server child processes. Users are recommended to upgrade to version 2.4.69, which fixes this issue
CVSS v3.1
Score 4.3medium
Affected software
Apache Software Foundation
Apache HTTP Server
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
A memory calculation bug in the mod_dav module of Apache HTTP Server versions 2.4.67 and earlier (up to 2.4.68) allows an attacker with permission to create WebDAV locks to cause a denial of service by crashing server child processes. The vulnerability is identified as CWE-789 (Memory Allocation with Excessive Size Value). The Apache Software Foundation recommends upgrading to version 2.4.69 to remediate this issue.
Potential Impact
An attacker with permission to create WebDAV locks can exploit this vulnerability to crash server child processes, resulting in denial of service conditions on affected Apache HTTP Server instances.
Mitigation Recommendations
Upgrade Apache HTTP Server to version 2.4.69 or later, which contains the fix for this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-04-28T14:47:08.369Z
- State
- PUBLISHED
Threat ID: 6abe83eca43b0b3b89c47ded
Added to database: 10/01/2026, 16:01:48 UTC
Last enriched: 10/01/2026, 16:16:12 UTC
Last updated: 10/01/2026, 16:31:52 UTC
Views: 5
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