critical9.8
CVE-2025-61622
Apache Pyfory python is vulnerable to deserialization of untrusted data
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | pyfory | >= 0.12.0, < 0.12.3 | 0.12.3 |
| pip | pyfury | >= 0.1.0, <= 0.10.3 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Fory | from 0.1.0 through 0.10.3 from 0.12.0 through 0.12.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://lists.apache.org/thread/vfn9hp9qt06db5yo1gmj3l114o3o2csd
- http://www.openwall.com/lists/oss-security/2025/09/29/3
- https://github.com/advisories/GHSA-538v-3wq9-4h3r
- https://nvd.nist.gov/vuln/detail/CVE-2025-61622
- https://github.com/apache/fory/pull/2629
- https://github.com/apache/fory/commit/379b948ecae5c3b849e5bdb3997978c9a163e40b
- https://github.com/apache/fory/releases/tag/v0.12.3