Apache Fory, Apache Fory: Python RCE via unguarded pickle fallback serializer in pyfory
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pyforyPyPI | >= 0.12.0, < 0.12.3 | 0.12.3 |
pyfuryPyPI | >= 0.1.0, <= 0.10.3 | — |
Affected products
3- ghsa-coords2 versions
>= 0.12.0, < 0.12.3+ 1 more
- (no CPE)range: >= 0.12.0, < 0.12.3
- (no CPE)range: >= 0.1.0, <= 0.10.3
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-538v-3wq9-4h3rghsaADVISORY
- lists.apache.org/thread/vfn9hp9qt06db5yo1gmj3l114o3o2csdghsavendor-advisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2025-61622ghsaADVISORY
- www.openwall.com/lists/oss-security/2025/09/29/3ghsaWEB
- github.com/apache/fory/commit/379b948ecae5c3b849e5bdb3997978c9a163e40bghsaWEB
- github.com/apache/fory/pull/2629ghsaWEB
- github.com/apache/fory/releases/tag/v0.12.3ghsaWEB
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