CVE-2026-64608

criticalCVSS 9.8covered by 1 sourcefirst seen 2026-07-21

Heap type confusion and out-of-bounds read/write in the Apache Fory C++ implementation. When deserializing data in compatible mode, the field-skip paths do not correctly validate the declared field types against the actual data, so input with an inconsistent schema can cause type confusion and out-of-bounds memory access. Only the C++ implementation is affected; other language implementations of Apache Fory are not. This issue affects Apache Fory C++: from 0.14.0 before 1.4.0. Users are recommended to upgrade to version 1.4.0, which fixes the issue.

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Exploitation outlook

Low exploitation risk0.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalCVE-2026-64608: Heap type confusion and out-of-bounds read/write in the Apache Fory C++ implementation. When d…nvd · 2026-07-21

External references

NVD record for CVE-2026-64608

CVE.org record

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