CVE-2025-59328: Apache Fory: Denial of Service (DoS) due to Deserialization of Untrusted malicious large Data

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-15 · updated 2026-06-17
Weakness: CWE-502

Description

A vulnerability in Apache Fory allows a remote attacker to cause a Denial of Service (DoS). The issue stems from the insecure deserialization of untrusted data. An attacker can supply a large, specially crafted data payload that, when processed, consumes an excessive amount of CPU resources during the deserialization process. This leads to CPU exhaustion, rendering the application or system using the Apache Fory library unresponsive and unavailable to legitimate users. Users of Apache Fory are strongly advised to upgrade to version 0.12.2 or later to mitigate this vulnerability. Developers of libraries and applications that depend on Apache Fory should update their dependency requirements to Apache Fory 0.12.2 or later and release new versions of their software.

Affected products

Apache Software Foundation Apache Fory: from 0.5.0 before 0.12.2 — fixed in 0.12.2

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Fory 0.12.2. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2025-59328 or the next vulnerability affects your stack