PatchSiren cyber security CVE debrief
CVE-2025-71378 picklescan CVE debrief
CVE-2025-71378 is a HIGH-severity vulnerability in picklescan, a tool designed to scan pickle files for potential security issues. The vulnerability, scored 7.6, allows attackers to execute arbitrary code by bypassing picklescan's detection of cProfile.runctx function calls in pickle file reduce methods. When loaded via pickle.load(), malicious pickle files can execute remote code. This issue affects picklescan versions before 0.0.30. Defenders should prioritize patching or mitigating this vulnerability to prevent potential code execution attacks.
- Vendor
- picklescan
- Product
- Unknown
- CVSS
- HIGH 7.6
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-21
- Original CVE updated
- 2026-06-23
- Advisory published
- 2026-06-21
- Advisory updated
- 2026-06-23
Who should care
Organizations using picklescan, especially those handling untrusted pickle files, should prioritize patching to version 0.0.30 or later. Developers and security teams responsible for secure coding practices and vulnerability management are particularly concerned. Given the HIGH severity and potential for remote code execution, swift action is recommended.
Technical summary
The vulnerability in picklescan (CVE-2025-71378) stems from its inability to detect cProfile.runctx function calls within pickle file reduce methods. This oversight allows malicious pickle files to bypass detection and execute arbitrary code when loaded. The issue is resolved in picklescan version 0.0.30. The CVSS score of 7.6 reflects the HIGH severity of this vulnerability, emphasizing the need for prompt remediation.
Defensive priority
Immediate patching or mitigation is advised due to the HIGH severity and potential for remote code execution.
Recommended defensive actions
- Update picklescan to version 0.0.30 or later to ensure detection of cProfile.runctx function calls.
- Implement compensating controls to validate and restrict the loading of untrusted pickle files.
- Review and monitor pickle file handling processes for potential abuse.
- Conduct regular vulnerability assessments to identify and address similar issues.
- Enhance secure coding practices to prevent similar vulnerabilities in custom code.
Evidence notes
The primary evidence for CVE-2025-71378 comes from the NVD and CVE.org records. The vulnerability affects picklescan versions before 0.0.30. Defenders should verify the version of picklescan in use and confirm if it is vulnerable. Official sources, such as the CVE record and NVD details, provide critical information for understanding and addressing this vulnerability.
Official resources
This article is AI-assisted and based on the supplied source corpus.