Vulnerability · Published Jun 23, 2026 · Assigned by VulnCheck

CVE-2025-71341picklescan - Remote Code Execution via Undetected profile.Profile.runctx

High 8.1

In plain English

A high-severity unsafe deserialization in picklescan from picklescan. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.6%top 52.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	picklescan	0.0.29	GHSA-6vqj-c2q5-j97w
PyPI	picklescan	0.0.29	PYSEC-2026-4132

Affected products (as reported)

Vendor	Product	Versions
picklescan	picklescan	0 – before 0.0.29

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-6vqj-c2q5-j97w) vendor-advisory
VulnCheck Advisory: picklescan - Remote Code Execution via Undetected profile.Profile.runctx third-party-advisory