CVE-2025-1945

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.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-345 CWE-345

Affected Products

Vendor	Product	Versions
mmaitre314	picklescan	< 0.0.23

References

Advisories & Patches

https://github.com/mmaitre314/picklescan/commit/e58e45e0d9e091159c1554f9b04828bbb40b9781 https://github.com/mmaitre314/picklescan/security/advisories/GHSA-w8jq-xcqf-f792

Exploits

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

Other References

https://www.sonatype.com/security-advisories/cve-2025-1945

Frequently Asked Questions

What is CVE-2025-1945? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-1945? +

CVE-2025-1945 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-1945? +

CVE-2025-1945 affects products from mmaitre314, specifically: picklescan. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-1945? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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