High 8.1Published Jun 22, 2026

CVE-2025-71344picklescan - Arbitrary Code Execution via Undetected ensurepip._run_pip Function

Updated under an hour ago (Oct 27, 2026, 10:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for picklescan

Exploited in the last 30 days

picklescan before 0.0.30 (affected versions 0.0.26 and earlier) fails to detect the ensurepip._run_pip built-in function when scanning pickle files, allowing attackers to execute arbitrary code. Malicious pickle files embedding ensurepip._run_pip calls in __reduce__ methods bypass picklescan detection and achieve remote code execution upon pickle.load() invocation.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jun 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

picklescan picklescan picklescan:picklescan (from the name)	before 0.0.30; 0.0.30 not affected	CNA record

References

References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-xp4f-hrf8-rxw7	vendor-advisory
https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-ensurepip-run-pip-function	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.