# CVE-2026-71559: Deserialization of Untrusted Data vulnerability in the Go implementation of Apache Fory allows an attacker to cause a…

Source: https://junglewise.ai/threats/cve-2026-71559-deserialization-of-untrusted-data-vulnerability-in-the-go  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-07  
License: CC BY 4.0 with a link back

CVE-2026-71559 · Severity: high · CVSS 7.5 · Published 2026-08-07

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.

Technologies: [Apache Fory](https://junglewise.ai/threats/technologies/fory). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-71559 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-71559 being exploited in the wild.

**How severe is CVE-2026-71559?** High severity, with a CVSS score of 7.5, published 7 August 2026.

**Which products and versions are affected?** Apache Fory. The advisory does not name versions.

**Is there a fix for CVE-2026-71559?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-71559?** Check whether you run Apache Fory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Apache Fory

## Related threats

- [Out-of-bounds Read vulnerability in Apache Fory C++ deserialization. This issue affects Apache Fory C++ versions from…](https://junglewise.ai/threats/cve-2026-71560-out-of-bounds-read-vulnerability-in-apache-fory-c-deserialization)
- [Heap type confusion vulnerability in Apache Fory C++ deserialization. This issue affects Apache Fory C++ versions from 0.14.0 before 1.5.0.](https://junglewise.ai/threats/cve-2026-71558-heap-type-confusion-vulnerability-in-apache-fory-c)