Deserialization in Picklescan
CVE-2025-71367
picklescan before 0.0.34 fails to detect _operator.attrgetter function calls in pickle payloads, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using _operator.attrgetter in reduce methods to execute arbitrary code when pickle.load() processes the file.
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, 0.0.34
Weakness classification (CWE)
References
- github.com/mmaitre314/picklescan/security/advisories/GHSA-46h3-79wf-xr6c (vendor-advisory)
- www.vulncheck.com/advisories/picklescan-remote-code-execution-via-operator-attr… (third-party-advisory)
Frequently asked questions
- What is CVE-2025-71367?
- CVE-2025-71367 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-2025-71367?
- High severity. CVSS v3 base score is 8.1 out of 10.