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OpenAdvisories
Critical RHSA-2026:22649 8 CVEs

Red Hat Security Advisory: php8.4 security update

Published Jun 3, 2026 · Updated Sep 22, 2026

Ecosystem: Red Hat

Fixed packages 50

ReleasePackageFixed in
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-bcmath 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-bcmath-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-cli 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-cli-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-common 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-common-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-dba 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-dba-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-dbg 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-dbg-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-debugsource 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-devel 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-embedded 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-embedded-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-enchant 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-enchant-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-ffi 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-ffi-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-fpm 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-fpm-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-gd 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-gd-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-gmp 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-gmp-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-intl 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-intl-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-ldap 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-ldap-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-mbstring 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-mbstring-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-mysqlnd 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-mysqlnd-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-odbc 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-odbc-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-opcache 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-opcache-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-pdo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-pdo-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-pgsql 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-pgsql-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-process 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-process-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-snmp 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-snmp-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-soap 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-soap-debuginfo 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-xml 0:8.4.21-1.el10_2
Red Hat · RHEL 10 enterprise_linux:10.2 php8.4-xml-debuginfo 0:8.4.21-1.el10_2

Vulnerabilities 8

  • Critical 9.5
    CVE-2026-6722

    Use-After-Free in SOAP using Apache map

    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, the SOAP extension's object deduplication mechanism stores pointers to PHP objects in a global map without incrementing their reference counts. When an apac…

    PHP Group PHP php5 php7.0 Debian Ubuntu Azure Linux Alpine Wolfi
  • High 7.3
    CVE-2026-6735 Public exploit

    XSS within PHP-FPM status endpoint

    In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, 8.5.* before 8.5.6, due to improper sanitation of user data, it allows an attacker to compose an URL, which will cause the target to execute arbitrary JavaScript code (XSS) on the …

    PHP Group PHP php5 php7.0 Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 6.3
    CVE-2026-6104

    Global buffer over-read in mb_convert_encoding() with attacker-supplied encoding

    In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, when an encoding name containing an embedded NUL byte is passed to mb_convert_encoding() or related mbstring functions, the code incorrectly assumes that when strncasecmp() returns 0 it means the str…

    PHP Group PHP php8.4 php84 Debian Ubuntu Alpine
  • Medium 6.3
    CVE-2026-7258

    Out-of-bounds read in urldecode() on NetBSD

    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, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lo…

    PHP Group PHP php php8.2 Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 6.3
    CVE-2026-7261

    SoapServer session-persisted object use-after-free via SOAP header fault

    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 …

    PHP Group PHP php5 php7.0 Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 6.3
    CVE-2026-7263

    DoS attack via DOMNode::C14N()

    In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data incorrectly, causing a circular linked list in the data structure representing the XML document. This may cause subsequent processing of the XML docume…

    PHP Group PHP php8.4 php85 Debian Ubuntu Alpine
  • Medium 6.3
    CVE-2026-7568

    Signed integer overflow in metaphone()

    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, the metaphone() function in ext/standard/metaphone.c uses a signed int variable to track the current position within the input string. If a string longer th…

    PHP Group PHP php5 php7.0 Debian Ubuntu Azure Linux Alpine Wolfi
  • Low 2.9
    CVE-2026-7262

    NULL pointer dereference in SOAP apache:Map decoder with missing <value>

    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…

    PHP Group PHP php5 php7.0 Debian Ubuntu Azure Linux Alpine Wolfi

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468561
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468562
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468565
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468566
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468572
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468573
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_22649.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-6104
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-6104
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-6104
  • article
    https://github.com/php/php-src/security/advisories/GHSA-74r9-qxhc-fx53
  • report
    https://access.redhat.com/security/cve/CVE-2026-6722
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468560
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-6722
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-6722
  • article
    https://github.com/php/php-src/security/advisories/GHSA-85c2-q967-79q5
  • report
    https://access.redhat.com/security/cve/CVE-2026-6735
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-6735
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-6735
  • article
    https://github.com/php/php-src/security/advisories/GHSA-7qg2-v9fj-4mwv
  • report
    https://access.redhat.com/security/cve/CVE-2026-7258
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-7258
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-7258
  • article
    https://github.com/php/php-src/security/advisories/GHSA-m8rr-4c36-8gq4
  • report
    https://access.redhat.com/security/cve/CVE-2026-7261
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2468563
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-7261
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-7261
  • article
    https://github.com/php/php-src/security/advisories/GHSA-m33r-qmcv-p97q
  • report
    https://access.redhat.com/security/cve/CVE-2026-7262
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-7262
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-7262
  • article
    https://github.com/php/php-src/security/advisories/GHSA-hmxp-6pc4-f3vv
  • report
    https://access.redhat.com/security/cve/CVE-2026-7263
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-7263
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-7263
  • article
    https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733
  • report
    https://access.redhat.com/security/cve/CVE-2026-7568