Deserialization of Untrusted Data in Apache Fory <1.5.0 (Go)
CVE-2026-71559 Published on August 7, 2026
Apache Fory: Uncaught panic (remote DoS) in Go meta-string decoder from untrusted metadata
Deserialization of Untrusted Data vulnerability in the Go implementation of Apache Fory allows an attacker to cause a denial of service by supplying crafted data containing malformed type metadata, which triggers an uncaught panic.
This issue affects Apache Fory: from 0.16.0 before 1.5.0. Users of other language implementations are not affected.
Users are recommended to upgrade to version 1.5.0, which fixes the issue.
Vulnerability Analysis
CVE-2026-71559 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2026-71559 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2026-71559
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Affected Versions
Apache Software Foundation Apache Fory:- Version 0.16.0 and below 1.5.0 is affected.