CVE-2025-1945

medium

Description

picklescan before 0.0.23 fails to detect malicious pickle files inside PyTorch model archives when certain ZIP file flag bits are modified. By flipping specific bits in the ZIP file headers, an attacker can embed malicious pickle files that remain undetected by PickleScan while still being successfully loaded by PyTorch's torch.load(). This can lead to arbitrary code execution when loading a compromised model.

References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-w8jq-xcqf-f792

https://hackread.com/picklescan-vulnerabilities-bypass-ai-security-checks/

https://www.sonatype.com/blog/bypassing-picklescan-sonatype-discovers-four-vulnerabilities

https://sites.google.com/sonatype.com/vulnerabilities/cve-2025-1945

https://github.com/mmaitre314/picklescan/commit/e58e45e0d9e091159c1554f9b04828bbb40b9781

Details

Source: Mitre, NVD

Published: 2025-03-10

Updated: 2025-03-19

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.0006