by Kastro
Paper/Archive/CVE-2025-71320

CVE-2025-71320

picklescan picklescan — picklescan - Remote Code Execution via Incomplete Disallowed Inputs

EPSS 0.8%public exploitCVSS 9.8
critical.is priorityof 100
51
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 57.3.573 × 2011.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unblocked functions to achieve arbitrary code execution when the pickle is deserialized.

Affected

ProductAffectedFixed inSource
picklescan< 0.0.330.0.33CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/mmaitre314/picklescan/security/advisories/GHSA-84r2-jw7c-4r5qwriteupvulncheck.com/advisories/picklescan-remote-code-execution-via-incomplete-disallowed-inputs