gcdRadar
archive/Patch now/AIR-2025-0519
closedclosed 23 Dec 2025Patch now2 Disclosed vulnerabilityAI

Hugging Face Transformers Megatron GPT2 Deserialization RCE

Transformers, megatron_gpt2

An unpatched remote code execution vulnerability exists in Hugging Face Transformers due to unsafe deserialization of model checkpoints. Attackers can exploit the lack of validation when users process malicious files or pages.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
7.8
EPSS
<0.01 · top 74% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
23 Dec 2025
last update
23 Dec 2025
CVE ids
CVE-2025-14924other records

Timeline · 1

  1. 23 Dec 2025CVE-2025-14924: Hugging Face Transformers megatron_gpt2 Deserialization of Untrusted Data Remote Code Execution Vulnerability.

Sources · 1

Advisories and databases

  1. 2025-12-23
    CVE-2025-14924: Hugging Face Transformers megatron_gpt2 Deserialization of Untrusted Data Remote Code Execution Vulnerability.
    NVD · nvd.nist.gov/vuln/detail/CVE-2025-14924

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerabilitySupply chain
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
AML.T0010 AI Supply Chain Compromise
tags
rcedeserialization
dates
happened 23 Dec 2025 · first reported 23 Dec 2025
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# Hugging Face Transformers Megatron GPT2 Deserialization RCE

https://gcdradar.vercel.app/incidents/hugging-face-transformers-megatron-gpt2-deserialization-rce · AIR-2025-0519 · closed 2025-12-23

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2025-12-23
- AI role: Attack on AI
- Products: Transformers, megatron_gpt2
- CVE ids: CVE-2025-14924
- CVSS: 7.8

## Summary

An unpatched remote code execution vulnerability exists in Hugging Face Transformers due to unsafe deserialization of model checkpoints. Attackers can exploit the lack of validation when users process malicious files or pages.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2025-12-23: CVE-2025-14924: Hugging Face Transformers megatron_gpt2 Deserialization of Untrusted Data Remote Code Execution Vulnerability. (https://nvd.nist.gov/vuln/detail/CVE-2025-14924)

## Sources

- 2025-12-23 NVD: CVE-2025-14924: Hugging Face Transformers megatron_gpt2 Deserialization of Untrusted Data Remote Code Execution Vulnerability. https://nvd.nist.gov/vuln/detail/CVE-2025-14924

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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