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Vulnerability record · CVE-2025-71341 · published 23 June 2026

CVE-2025-71341: Deserialization of untrusted data vulnerability

picklescan before 0.0.29 fails to detect the profile.Profile.runctx function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using profile.Profile.runctx in the reduce method to achieve remote code execution when the pickle file is loaded.

7.6 CVSS 4.0 High EPSS 0.61% · top 52.8% CWE-502 · Deserialization of untrusted data Deferred
7.6CVSS 4.0 base score
0.61%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
23 Jun 2026Last modified by NVD

Description

picklescan before 0.0.29 fails to detect the profile.Profile.runctx function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using profile.Profile.runctx in the reduce method to achieve remote code execution when the pickle file is loaded.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6vqj-c2q5-j97w
https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-undetected-profile-profile-runctx
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-6vqj-c2q5-j97w

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Source: NIST National Vulnerability Database (record CVE-2025-71341), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.