CVE-2026-33007: CWE-476 NULL Pointer Dereference in Apache Software Foundation Apache HTTP Server
CVE-2026-33007 is a medium severity vulnerability in Apache HTTP Server versions 2.4.66 and earlier. It involves a NULL pointer dereference in the mod_authn_socache module that can be triggered by an unauthenticated remote user. This flaw allows crashing a child process when the server is configured as a caching forward proxy. The issue does not impact confidentiality or integrity but causes a denial of service by affecting availability. Users are advised to upgrade to Apache HTTP Server version 2.4.67, which addresses this vulnerability.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-33007) is a NULL pointer dereference in the mod_authn_socache module of Apache HTTP Server 2.4.66 and earlier. An unauthenticated remote attacker can exploit this flaw to crash a child process in configurations using caching forward proxy. The vulnerability results in denial of service without affecting data confidentiality or integrity. The Apache Software Foundation recommends upgrading to version 2.4.67 to fix this issue.
Potential Impact
The vulnerability allows an unauthenticated remote attacker to cause a denial of service by crashing a child process in Apache HTTP Server when configured as a caching forward proxy. There is no impact on confidentiality or integrity. The CVSS v3.1 base score is 5.3 (medium severity), reflecting the availability impact only.
Mitigation Recommendations
Users should upgrade to Apache HTTP Server version 2.4.67, which contains the fix for this vulnerability. Patch status is confirmed by the vendor recommendation to upgrade. No alternative mitigations are specified.
CVE-2026-33007: CWE-476 NULL Pointer Dereference in Apache Software Foundation Apache HTTP Server
Description
CVE-2026-33007 is a medium severity vulnerability in Apache HTTP Server versions 2.4.66 and earlier. It involves a NULL pointer dereference in the mod_authn_socache module that can be triggered by an unauthenticated remote user. This flaw allows crashing a child process when the server is configured as a caching forward proxy. The issue does not impact confidentiality or integrity but causes a denial of service by affecting availability. Users are advised to upgrade to Apache HTTP Server version 2.4.67, which addresses this vulnerability.
CVSS v3.1
Score 5.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-33007) is a NULL pointer dereference in the mod_authn_socache module of Apache HTTP Server 2.4.66 and earlier. An unauthenticated remote attacker can exploit this flaw to crash a child process in configurations using caching forward proxy. The vulnerability results in denial of service without affecting data confidentiality or integrity. The Apache Software Foundation recommends upgrading to version 2.4.67 to fix this issue.
Potential Impact
The vulnerability allows an unauthenticated remote attacker to cause a denial of service by crashing a child process in Apache HTTP Server when configured as a caching forward proxy. There is no impact on confidentiality or integrity. The CVSS v3.1 base score is 5.3 (medium severity), reflecting the availability impact only.
Mitigation Recommendations
Users should upgrade to Apache HTTP Server version 2.4.67, which contains the fix for this vulnerability. Patch status is confirmed by the vendor recommendation to upgrade. No alternative mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-03-17T16:46:05.025Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69f8b5f1cbff5d86102f7016
Added to database: 5/4/2026, 3:06:25 PM
Last enriched: 5/12/2026, 6:23:33 AM
Last updated: 6/18/2026, 10:16:14 AM
Views: 79
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