CVE-2025-61622 — Apache Fory, Apache Fory: Python RCE via unguarded pickle fallback serializer in pyfory

Description (CNA)

Deserialization of untrusted data in python in pyfory versions 0.12.0 through 0.12.2, or the legacy pyfury versions from 0.1.0 through 0.10.3: allows arbitrary code execution. An application is vulnerable if it reads pyfory serialized data from untrusted sources. An attacker can craft a data stream that selects pickle-fallback serializer during deserialization, leading to the execution of `pickle.loads`, which is vulnerable to remote code execution. Users are recommended to upgrade to pyfory version 0.12.3 or later, which has removed pickle fallback serializer and thus fixes this issue.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Fory	affected 0.12.0 through 0.12.2
Apache Software Foundation / Apache Fory	affected 0.1.0 through 0.10.3

CWE

CWE-502

References

https://lists.apache.org/thread/vfn9hp9qt06db5yo1gmj3l114o3o2csd

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2025/09/29/3