CVE-2026-48207

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Source

https://cve.org/CVERecord?id=CVE-2026-48207

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48207.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-48207

Aliases

Published

2026-05-21T15:51:12Z

Modified

2026-10-28T02:30:30Z

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 ReduceSerializer Incomplete Policy Enforcement

Details

Deserialization of untrusted data in Apache Fory PyFory. 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

{
    "cna_assigner":  "apache",
    "cwe_ids":  [
        "CWE-502"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48207.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "range":  [
                        {
                            "introduced":  "0.13.0"
                        },
                        {
                            "fixed":  "1.0.0"
                        }
                    ],
                    "source":  "AFFECTED_FIELD",
                    "strategy":  "StandardRange"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/apache/fory

Affected ranges

Type

GIT

Repo

https://github.com/apache/fory

Events

Introduced

471a646d2d3c3aad32870c76e986dc19b51de6d4

Fixed

36a01b6253d5974f13be3258205ac13f0ceaee44

Database specific

Show details

{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:apache:fory:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0.13.0"
                },
                {
                    "fixed":  "1.0.0"
                }
            ],
            "source":  "CPE_RANGE"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48207.json"