CVE-2026-75834: Php Unverified File Cache Deserialization

Data read directly from a file or stream is deserialized without cryptographic integrity verification (such as HMAC via hash_hmac/hash_equals). This allows arbitrary PHP object injection if an attacker can tamper with or write cache files.

Provally CuratedPublic repositoryHighHigh confidenceVerifiedApache-2.0PHP
greprules fetch cve-2026-75834-php-unverified-file-cache-deserialization --engine opengrep

Description

Data read directly from a file or stream is deserialized without cryptographic integrity verification (such as HMAC via hash_hmac/hash_equals). This allows arbitrary PHP object injection if an attacker can tamper with or write cache files.