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CVE-2026-71559— Apache Fory: Uncaught panic (remote DoS) in Go meta-string decoder from untrusted metadata

Quick assessment

Affected
Apache Software Foundation Apache Fory
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Fory C++是美国Apache基金会的一个C++开发框架。 Apache Fory C++ 0.16.0版本至1.5.0之前版本存在反序列化注入漏洞，该漏洞源于Go实现对不可信数据的反序列化，攻击者通过提供包含畸形类型元数据的特制数据可触发未捕获的panic，导致拒绝服务。

AI Predicted 5.3 Difficulty: Easy EPSS 0.80% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Fory 0.16.0< 1.5.0 affected
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I. Basic Information for CVE-2026-71559

Vulnerability Information
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Vulnerability Title
Apache Fory: Uncaught panic (remote DoS) in Go meta-string decoder from untrusted metadata
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Fory C++ 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Fory C++是美国Apache基金会的一个C++开发框架。 Apache Fory C++ 0.16.0版本至1.5.0之前版本存在反序列化注入漏洞，该漏洞源于Go实现对不可信数据的反序列化，攻击者通过提供包含畸形类型元数据的特制数据可触发未捕获的panic，导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Fory 0.16.0 ~ 1.5.0 -

II. Public POCs for CVE-2026-71559

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III. Intelligence Information for CVE-2026-71559

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Mailing List Discussions for CVE-2026-71559 (1)

Same Patch Batch · Apache Software Foundation · 2026-08-07 · 3 CVEs total

CVE-2026-71558 Apache Fory: Heap type confusion in C++ polymorphic smart-pointer deserialization
CVE-2026-71560 Apache Fory: Out-of-bounds heap read in C++ struct deserializer tagged-int fast-path

IV. Related Vulnerabilities

Same product: Apache Fory
Same vendor: Apache Software Foundation
Same weakness: CWE-502