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CVE-2026-42471 is an unsafe deserialization vulnerability in MixPHP Framework 2.x through 2.2.17. The flaw is in the sync-invoke client code path, specifically Connection.php line 76, where the client calls PHP's unserialize() on data received in a server response. Because the deserialization occurs on untrusted remote input without an allowlist or integrity validation, a malicious or compromised server can supply crafted serialized data that triggers PHP object injection and potentially arbitrary code execution on the client side.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.