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
2026-05-21T15:51:12.292Z
Modified
2026-07-15T01:49:20.903282937Z
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 
{
    "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": [
                {
                    "introduced": "0.13.0"
                },
                {
                    "fixed": "1.0.0"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "fixed": "1.0.0"
                }
            ],
            "source": "DESCRIPTION"
        }
    ],
    "cna_assigner": "apache"
}
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 
{
    "cpe": "cpe:2.3:a:apache:fory:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "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"