Apache Fory Deserialization of Untrusted Data vulnerability
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.fory:fory-core | < 0.12.2 | 0.12.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-59328
- https://github.com/apache/fory/pull/2578
- https://github.com/apache/fory/commit/c3b4d3fe389e38495aeb8301d75da1ab658f0c6e
- https://fory.apache.org/security
- https://github.com/apache/fory
- https://github.com/apache/fory/releases/tag/v0.12.2
- http://www.openwall.com/lists/oss-security/2025/09/15/1
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-502- Platform
- Java / Kotlin (Maven)
- Package
org.apache.fory:fory-core- Disclosed
- 15.09.2025
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5hmf-8wx5-4qq3 - CC BY 4.0
Vulnerability history: org.apache.fory:fory-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 09.2025 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- Medium 1
Disclosures per year
- 2025: 1
- 2026: 1
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