Red Hat Security AdvisoryRHSA-2026:22649
php8.4 security update
Released 2026-06-02 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream (v. 10) php8.4-8.4.21-1.el10_2, php8.4-bcmath-8.4.21-1.el10_2, php8.4-cli-8.4.21-1.el10_2 +22
Fixes 8 records
Priority MEDIUM 45
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 incrementi…
CVSS 4.0CRITICAL 9.5· Network · No auth · No interaction · EPSS 0.00894 · Published 2026-05-10 · Partial fix · 8.2.31, 8.3.31 +2 CWE-416
Priority LOW 34
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.
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00353 · Published 2026-05-10 · Fixed in 8.4.21, 8.5.6 CWE-404
Priority LOW 34
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 sess…
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00302 · Published 2026-05-10 · Partial fix · 8.2.31, 8.3.31 +2 CWE-416
Priority LOW 34
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 s…
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00469 · Published 2026-05-10 · Fixed in 8.4.21, 8.5.6 CWE-125
Priority LOW 31
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…
CVSS 4.0HIGH 7.3· Network · No auth · User interaction · EPSS 0.00193 · Published 2026-05-10 · Partial fix · 8.2.31, 8.3.31 +2 CWE-79
Priority LOW 28
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…
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00455 · Published 2026-05-10 · Fixed in 8.2.31, 8.3.31 +2 CWE-125
Priority LOW 28
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()).
CVSS 4.0MEDIUM 6.3· Network · No auth · No interaction · EPSS 0.00363 · Published 2026-05-10 · Partial fix · 8.2.31, 8.3.31 +2 CWE-125
Priority LOW 22
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…
CVSS 4.0LOW 2.9· Network · No auth · No interaction · EPSS 0.0078 · Published 2026-05-10 · Fixed in 8.2.31, 8.3.31 +2 CWE-476