Paper/Archive/CVE-2026-64608

CVE-2026-64608

Apache Software Foundation Apache Fory — Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths

EPSS 0.8%CVSS 9.8

critical.is priorityof 100

CVSS 9.8 (ADP)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 56.8.568 × 2011.4 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

Apache Fory0.14.0 – < 1.4.01.4.0CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorylists.apache.org/thread/wl05slf57zzoq1s4pg4tk6nx6mjyjr4b refopenwall.com/lists/oss-security/2026/07/21/5