CVE-2026-71558

Heap type confusion vulnerability in Apache Fory C++ deserialization. This issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0. A crafted input payload can bypass type compatibility checks during polymorphic smart-pointer deserialization, causing an object of an incompatible type to be treated as the declared base type. This may result in undefined behavior and potentially lead to denial of service or arbitrary code execution. Users are recommended to upgrade to Apache Fory 1.5.0, which fixes this issue. Applications not using Apache Fory C++ polymorphic smart-pointer deserialization are not affected.

• CWE-502
• CWE-843

• https://lists.apache.org/thread/oywndv60jwqdv6j37t7bc1qbcc4b235rMailing List, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2026/08/07/3Mailing List, Third Party Advisory

Published

Aug 7, 2026

Last Modified

Aug 8, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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