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CVE-2026-64606 is a deserialization of untrusted data vulnerability in Apache Fory affecting versions before 1.4.0. During Java lambda deserialization, an auto-admitted SerializedLambda path can allow class-registration checks to be bypassed for the lambda capture class. The issue is limited to the lambda capture class, but it undermines a security control intended to restrict which classes may be deserialized. In deployments that deserialize untrusted or attacker-controlled data, this bypass can expose applications to unsafe deserialization behavior and downstream compromise.
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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 public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.