CVE-2025-71373

picklescan - Remote Code Execution via operator.methodcaller Detection Bypass

State: Published
Severity: 7.6 High
Published: Jul 4, 2026
Updated: Jul 6, 2026
Reserved: Jun 20, 2026

Description

picklescan before 0.0.33 fails to detect operator.methodcaller function calls in pickle files, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle payloads using operator.methodcaller that execute arbitrary code when loaded, compromising systems relying on picklescan for validation.

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 0.0.33Affected 0.0.33Not affected

References

GitHub Security Advisory (GHSA-x843-g5mx-g377)vendor-advisory
VulnCheck Advisory: picklescan - Remote Code Execution via operator.methodcaller Detection Bypassthird-party-advisory

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