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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | picklescan | <0.0.23 | 0.0.23 |
| PyPI | picklescan | <e58e45e0d9e091159c1554f9b04828bbb40b9781||<0.0.23 | e58e45e0d9e091159c1554f9b04828bbb40b9781 |
References
- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-w8jq-xcqf-f792
- https://nvd.nist.gov/vuln/detail/CVE-2025-1945
- https://github.com/mmaitre314/picklescan/commit/e58e45e0d9e091159c1554f9b04828bbb40b9781
- https://github.com/mmaitre314/picklescan
- https://github.com/pypa/advisory-database/tree/main/vulns/picklescan/PYSEC-2025-21.yaml
- https://sites.google.com/sonatype.com/vulnerabilities/cve-2025-1945
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.