CVE-2026-71558: critical vulnerability in Apache Fory
Apache Fory: Heap type confusion in C++ polymorphic smart-pointer deserialization
Published
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 1.0%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Apache Software Foundation · Apache ForyRelated CVEs — Apache Fory
In the same product, most dangerous first.
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