Vulnerability in Picklescan
CVE-2025-71373
picklescan before 0.0.33 fails to detect operator.methodcaller function calls in pickle files, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle payloads using operator.methodcaller that execute arbitrary code when loaded, compromising systems relying on picklescan for validation.
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 (46.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.9% 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: 0.000
Affected products
- Picklescan — versions 0, 0.0.33
Weakness classification (CWE)
References
- github.com/mmaitre314/picklescan/security/advisories/GHSA-x843-g5mx-g377 (vendor-advisory)
- www.vulncheck.com/advisories/picklescan-remote-code-execution-via-operator-meth… (third-party-advisory)
Frequently asked questions
- What is CVE-2025-71373?
- CVE-2025-71373 is a high-severity vulnerability in Picklescan, classified under Protection Mechanism Failure. CVSS score: 8.1/10. Published 2026-07-04.
- How severe is CVE-2025-71373?
- High severity. CVSS v3 base score is 8.1 out of 10.