CVE-2025-71352

picklescan - Remote Code Execution via Undetected trace.Trace.runctx in Pickle Files

State: Published
Severity: 7.6 High
Published: Jun 30, 2026
Updated: Jul 1, 2026
Reserved: Jun 20, 2026

Description

picklescan before 0.0.29 fails to detect the built-in Python trace.Trace.runctx function when used in pickle file reduce methods, allowing attackers to execute arbitrary code. Remote attackers can craft malicious pickle files with trace.Trace.runctx payloads that bypass picklescan detection and execute code upon pickle.load() invocation.

Scores

CVSS	Score	Vector	Source
4.0	7.6 High	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	VulnCheck
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N	VulnCheck

Weaknesses

CWE-693 Protection Mechanism Failure

Affected Products

Product	Versions
picklescanpicklescan	before 0.0.29Affected 0.0.29Not affected

References

GitHub Security Advisory (GHSA-g344-hcph-8vgg)vendor-advisory
VulnCheck Advisory: picklescan - Remote Code Execution via Undetected trace.Trace.runctx in Pickle Filesthird-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.