01 Record

CVE-2026-7259

Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

LowPUBLISHEDCNA: php

CNA base score2.1 CVSS v4.0CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/AU:Y/U:Amber

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02 Description

Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 7.7% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Amber

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-10 04:13Z5 MO AGO

Last updated

2026-05-11 13:13Z5 MO AGO

Reserved

2026-04-28

Assigning CNA

php

Record state

PUBLISHED

Severity

Low (CVSS 2.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/AU:Y/U:Amber

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

6d3029f0558f00144b57d54739f809714471e5f836718907a8a12246e378bc4a

05 Affected products

VendorProductVersionsPlatforms

PHP GroupPHP8.2.* to < 8.2.31, 8.3.* to < 8.3.31, 8.4.* to < 8.4.21, 8.5.* to < 8.5.6—

06 References

github.comhttps://github.com/php/php-src/security/advisories/GHSA-wm6j-2649-pv75vendor-advisory

07 Fixed in

AlmaLinux 9

php
Fixed in 8.0.30-6.el9_8
php-bcmath
Fixed in 8.0.30-6.el9_8
php-cli
Fixed in 8.0.30-6.el9_8
php-common
Fixed in 8.0.30-6.el9_8
php-dba
Fixed in 8.0.30-6.el9_8
php-dbg
Fixed in 8.0.30-6.el9_8
php-devel
Fixed in 8.0.30-6.el9_8
php-embedded
Fixed in 8.0.30-6.el9_8
php-enchant
Fixed in 8.0.30-6.el9_8
php-ffi
Fixed in 8.0.30-6.el9_8
php-fpm
Fixed in 8.0.30-6.el9_8
php-gd
Fixed in 8.0.30-6.el9_8
php-gmp
Fixed in 8.0.30-6.el9_8
php-intl
Fixed in 8.0.30-6.el9_8
php-ldap
Fixed in 8.0.30-6.el9_8
php-mbstring
Fixed in 8.0.30-6.el9_8
php-mysqlnd
Fixed in 8.0.30-6.el9_8
php-odbc
Fixed in 8.0.30-6.el9_8
php-opcache
Fixed in 8.0.30-6.el9_8
php-pdo
Fixed in 8.0.30-6.el9_8
php-pgsql
Fixed in 8.0.30-6.el9_8
php-process
Fixed in 8.0.30-6.el9_8
php-snmp
Fixed in 8.0.30-6.el9_8
php-soap
Fixed in 8.0.30-6.el9_8
php-xml
Fixed in 8.0.30-6.el9_8

AlmaLinux 10

php
Fixed in 8.3.31-1.el10_2
php-bcmath
Fixed in 8.3.31-1.el10_2
php-cli
Fixed in 8.3.31-1.el10_2
php-common
Fixed in 8.3.31-1.el10_2
php-dba
Fixed in 8.3.31-1.el10_2
php-dbg
Fixed in 8.3.31-1.el10_2
php-devel
Fixed in 8.3.31-1.el10_2
php-embedded
Fixed in 8.3.31-1.el10_2
php-enchant
Fixed in 8.3.31-1.el10_2
php-ffi
Fixed in 8.3.31-1.el10_2
php-fpm
Fixed in 8.3.31-1.el10_2
php-gd
Fixed in 8.3.31-1.el10_2
php-gmp
Fixed in 8.3.31-1.el10_2
php-intl
Fixed in 8.3.31-1.el10_2
php-ldap
Fixed in 8.3.31-1.el10_2
php-mbstring
Fixed in 8.3.31-1.el10_2
php-mysqlnd
Fixed in 8.3.31-1.el10_2
php-odbc
Fixed in 8.3.31-1.el10_2
php-opcache
Fixed in 8.3.31-1.el10_2
php-pdo
Fixed in 8.3.31-1.el10_2
php-pgsql
Fixed in 8.3.31-1.el10_2
php-process
Fixed in 8.3.31-1.el10_2
php-snmp
Fixed in 8.3.31-1.el10_2
php-soap
Fixed in 8.3.31-1.el10_2
php-xml
Fixed in 8.3.31-1.el10_2

CloudLinux 9

php
Fixed in 8.0.30-6.el9_8
php-bcmath
Fixed in 8.0.30-6.el9_8
php-cli
Fixed in 8.0.30-6.el9_8
php-common
Fixed in 8.0.30-6.el9_8
php-dba
Fixed in 8.0.30-6.el9_8
php-dbg
Fixed in 8.0.30-6.el9_8
php-devel
Fixed in 8.0.30-6.el9_8
php-embedded
Fixed in 8.0.30-6.el9_8
php-enchant
Fixed in 8.0.30-6.el9_8
php-ffi
Fixed in 8.0.30-6.el9_8
php-fpm
Fixed in 8.0.30-6.el9_8
php-gd
Fixed in 8.0.30-6.el9_8
php-gmp
Fixed in 8.0.30-6.el9_8
php-intl
Fixed in 8.0.30-6.el9_8
php-ldap
Fixed in 8.0.30-6.el9_8
php-mbstring
Fixed in 8.0.30-6.el9_8
php-mysqlnd
Fixed in 8.0.30-6.el9_8
php-odbc
Fixed in 8.0.30-6.el9_8
php-opcache
Fixed in 8.0.30-6.el9_8
php-pdo
Fixed in 8.0.30-6.el9_8
php-pgsql
Fixed in 8.0.30-6.el9_8
php-process
Fixed in 8.0.30-6.el9_8
php-snmp
Fixed in 8.0.30-6.el9_8
php-soap
Fixed in 8.0.30-6.el9_8
php-xml
Fixed in 8.0.30-6.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

CloudLinux 10

php
Fixed in 8.3.31-1.el10_2
php-bcmath
Fixed in 8.3.31-1.el10_2
php-cli
Fixed in 8.3.31-1.el10_2
php-common
Fixed in 8.3.31-1.el10_2
php-dba
Fixed in 8.3.31-1.el10_2
php-dbg
Fixed in 8.3.31-1.el10_2
php-devel
Fixed in 8.3.31-1.el10_2
php-embedded
Fixed in 8.3.31-1.el10_2
php-enchant
Fixed in 8.3.31-1.el10_2
php-ffi
Fixed in 8.3.31-1.el10_2
php-fpm
Fixed in 8.3.31-1.el10_2
php-gd
Fixed in 8.3.31-1.el10_2
php-gmp
Fixed in 8.3.31-1.el10_2
php-intl
Fixed in 8.3.31-1.el10_2
php-ldap
Fixed in 8.3.31-1.el10_2
php-mbstring
Fixed in 8.3.31-1.el10_2
php-mysqlnd
Fixed in 8.3.31-1.el10_2
php-odbc
Fixed in 8.3.31-1.el10_2
php-opcache
Fixed in 8.3.31-1.el10_2
php-pdo
Fixed in 8.3.31-1.el10_2
php-pgsql
Fixed in 8.3.31-1.el10_2
php-process
Fixed in 8.3.31-1.el10_2
php-snmp
Fixed in 8.3.31-1.el10_2
php-soap
Fixed in 8.3.31-1.el10_2
php-xml
Fixed in 8.3.31-1.el10_2

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Debian 12

php8.2
Fixed in 8.2.31-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

php8.4
Fixed in 8.4.21-1~deb13u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

php8.4
Fixed in 8.4.21-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

php8.1
Fixed in 8.1.2-1ubuntu2.24

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

php8.3
Fixed in 8.3.6-0ubuntu0.24.04.9

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

php8.4
Fixed in 8.4.11-1ubuntu1.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

php8.5
Fixed in 8.5.4-0ubuntu1.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.