CVE-2025-71349

picklescan - Arbitrary Code Execution via Undetected trace.Trace.run in Pickle Files

CVSS 7.6 HIGHEPSS 0.6%CWE-502

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.6EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

30 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

picklescan before 0.0.29 fails to detect the built-in trace.Trace.run function when analyzing pickle files, allowing attackers to embed undetected malicious code. Remote attackers can craft malicious pickle files using trace.Trace.run in the reduce method to achieve arbitrary code execution when pickle.load processes the file.

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

Affected products

picklescan · picklescan

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References

https://github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-trace-trace-run-in-pickle-files