PHP up to 8.2.30/8.3.30/8.4.20/8.5.5 SOAP Request use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in PHP up to 8.2.30/8.3.30/8.4.20/8.5.5. Impacted is an unknown function of the component SOAP Request Handler. Executing a manipulation can lead to use after free. This vulnerability appears as CVE-2026-7261. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in PHP up to 8.2.30/8.3.30/8.4.20/8.5.5 and classified as critical. This vulnerability affects an unknown function of the component SOAP Request Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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 SoapServer is configured with SOAP_PERSISTENCE_SESSION, the handler object is persisted across requests via session storage. However, in the case SOAP requests results in an error, the persistance is handled incorrectly, resulting in freeing the object while keeping a pointer to it, which may lead to use-after-free. This may lead to memory corruption, information disclosure, or process crashes, with confidentiality, integrity, and availability impact on the vulnerable system.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-7261 since 04/28/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/03/2026).

The vulnerability scanner Nessus provides a plugin with the ID 313734 (Fedora 44 : php (2026-c66eaae759)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.2.31, 8.3.31, 8.4.21 or 8.5.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (313734) and CERT Bund (WID-SEC-2026-1433). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Microsoft Azure Linux
  • Open Source PHP
  • Zend ZendPHP
  • cPanel cPanel/WHM

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 313734
Nessus Name: Fedora 44 : php (2026-c66eaae759)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PHP 8.2.31/8.3.31/8.4.21/8.5.6

Timelineinfo

04/28/2026 CVE reserved
05/10/2026 +12 days Advisory disclosed
05/10/2026 +0 days VulDB entry created
07/03/2026 +54 days VulDB entry last update

Sourcesinfo

Product: php.org

Advisory: GHSA-m33r-qmcv-p97q
Status: Confirmed

CVE: CVE-2026-7261 (🔒)
GCVE (CVE): GCVE-0-2026-7261
GCVE (VulDB): GCVE-100-362488
CERT Bund: WID-SEC-2026-1433 - PHP: Mehrere Schwachstellen

Entryinfo

Created: 05/10/2026 09:00
Updated: 07/03/2026 16:34
Changes: 05/10/2026 09:00 (71), 05/10/2026 10:42 (7), 05/11/2026 10:56 (2), 06/02/2026 02:18 (1), 06/04/2026 09:19 (1), 07/03/2026 16:34 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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