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Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

Fix status Fixed 2 Partial 0 Will not fix 0 Deferred 0 No fix listed 0

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Requirements No authentication 2 No user interaction 2

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Weakness (CWE) CWE-125 Out-of-bounds Read 1 CWE-404 Improper Resource Shutdown or Release 1 CWE-835 Loop with Unreachable Exit Condition 1

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Release: PHP 8.4.21, 8.5.6 × Clear all filters

TI-2026-06377 CVE-2026-7263

DoS attack via DOMNode::C14N()

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

TI-2026-05348 CVE-2026-6104

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

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

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