Vulnerability · Published Dec 23, 2025 · Assigned by zdi

CVE-2025-14930Hugging Face Transformers GLM4 Deserialization of Untrusted Data Remote Code Execution Vulnerability

High 7.8

In plain English

A high-severity unsafe deserialization in Transformers from Hugging Face. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.0)7.8High

Exploit odds (30 days)0.3%top 73.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Hugging Face Transformers GLM4 Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hugging Face Transformers. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of weights. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28309.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	transformers	no fix listed	PYSEC-2025-218

Affected products (as reported)

Vendor	Product	Versions
Hugging Face	Transformers	4.57.1

Weakness: CWE-502 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

ZDI-25-1145 x_research-advisory