Deserialization in Picklescan
CVE-2025-71369
picklescan before 0.0.28 fails to detect malicious pickle files that use torch.utils.data.datapipes.utils.decoder.basichandlers in reduce methods, allowing attackers to bypass safety checks. Remote attackers can embed undetected malicious code in pickle files that executes during deserialization, enabling remote code execution.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.001
Affected products
- Picklescan — versions 0, 0.0.28
Weakness classification (CWE)
References
- github.com/mmaitre314/picklescan/security/advisories/GHSA-h3qp-7fh3-f8h4 (vendor-advisory)
- www.vulncheck.com/advisories/picklescan-unsafe-deserialization-via-torch-utils-… (third-party-advisory)
Frequently asked questions
- What is CVE-2025-71369?
- CVE-2025-71369 is a high-severity vulnerability in Picklescan, classified under Deserialization of Untrusted Data. CVSS score: 8.1/10. Published 2026-07-04.
- How severe is CVE-2025-71369?
- High severity. CVSS v3 base score is 8.1 out of 10.