CVE-2026-7262: CWE-476 NULL pointer dereference in PHP Group PHP
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a SOAP server has a typemap configured, the decoding process contains a mistake which checks the wrong variable in case of missing value element. This leads to dereferences a NULL pointer, causing a segmentation fault. This allows a remote unauthenticated attacker to crash the PHP SOAP server process, resulting in denial of service.
AI Analysis
Technical Summary
This vulnerability arises from a NULL pointer dereference in the PHP SOAP server decoding process when a typemap is configured and a value element is missing. The decoding logic checks the wrong variable, causing the server process to crash with a segmentation fault. A remote unauthenticated attacker can exploit this to cause a denial of service by crashing the PHP SOAP server. Affected versions include PHP 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6. There is no vendor advisory indicating an official fix or patch availability at this time.
Potential Impact
The impact is a denial of service condition caused by a segmentation fault in the PHP SOAP server process. This can be triggered remotely without authentication by sending crafted requests that exploit the NULL pointer dereference. No information indicates privilege escalation, data disclosure, or code execution. The CVSS score of 2.9 reflects the limited impact focused on service availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling or restricting access to the PHP SOAP server functionality if it is not required. Monitor for updates from the PHP Group regarding patches or workarounds.
CVE-2026-7262: CWE-476 NULL pointer dereference in PHP Group PHP
Description
In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a SOAP server has a typemap configured, the decoding process contains a mistake which checks the wrong variable in case of missing value element. This leads to dereferences a NULL pointer, causing a segmentation fault. This allows a remote unauthenticated attacker to crash the PHP SOAP server process, resulting in denial of service.
CVSS v4.0
Score 2.9low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a NULL pointer dereference in the PHP SOAP server decoding process when a typemap is configured and a value element is missing. The decoding logic checks the wrong variable, causing the server process to crash with a segmentation fault. A remote unauthenticated attacker can exploit this to cause a denial of service by crashing the PHP SOAP server. Affected versions include PHP 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6. There is no vendor advisory indicating an official fix or patch availability at this time.
Potential Impact
The impact is a denial of service condition caused by a segmentation fault in the PHP SOAP server process. This can be triggered remotely without authentication by sending crafted requests that exploit the NULL pointer dereference. No information indicates privilege escalation, data disclosure, or code execution. The CVSS score of 2.9 reflects the limited impact focused on service availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling or restricting access to the PHP SOAP server functionality if it is not required. Monitor for updates from the PHP Group regarding patches or workarounds.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- php
- Date Reserved
- 2026-04-28T05:09:37.127Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a000b48cbff5d861022ac7a
Added to database: 5/10/2026, 4:36:24 AM
Last enriched: 5/17/2026, 10:50:12 AM
Last updated: 6/17/2026, 10:24:37 PM
Views: 72
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