GHSA-m5gw-83w2-7749
Suggest an improvement- Source
- https://github.com/advisories/GHSA-m5gw-83w2-7749
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-m5gw-83w2-7749/GHSA-m5gw-83w2-7749.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-m5gw-83w2-7749
- Aliases
- Published
- 2026-05-21T18:33:09Z
- Modified
- 2026-07-13T16:42:39Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Apache Fory PyFory Deserialization of Untrusted Data
- Details
-
Fory PyFory's ReduceSerializer could bypass documented DeserializationPolicy validation hooks during reduce-state restoration and global-name resolution. An application is vulnerable if it deserializes attacker-controlled data using PyFory Python-native mode with strict mode disabled and relies on DeserializationPolicy to restrict unsafe classes, functions, or module attributes.
This issue affects Apache Fory: from before 1.0.0.
Mitigation: Users of Apache Fory are recommended to upgrade to version 1.0.0 or later, which enforces DeserializationPolicy validation for the affected ReduceSerializer paths and thus fixes this issue.
- Database specific
{ "cwe_ids": [ "CWE-502" ], "github_reviewed": true, "github_reviewed_at": "2026-06-30T21:44:43Z", "nvd_published_at": "2026-05-21T17:16:21Z", "severity": "CRITICAL" }- References
Affected packages
PyPI / pyfory
Package
- Name
- pyfory
- View open source insights on deps.dev
- Purl
- pkg:pypi/pyfory