Severity:

HIGH RISK

(7.8)

Unsafe Model Checkpoint Deserialization (CWE-502) in HuggingFace Transformers Trainer

CVE-2026-1839

Published:

Apr 7, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Vulnerability Type

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Arbitrary Code Execution via Malicious Checkpoints

Severity:

HIGH RISK

(7.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Arbitrary Code Execution via Malicious Checkpoints

Severity:

HIGH RISK

(7.8)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.