CVE-2025-71352

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.

CVSS 4.0

7.6CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS

0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-25)

CWE

CWE-693

Published

2026-06-30

Modified

2026-10-12

Record from

the NVD, synced 2026-10-19

Packages (OSV)

References

• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g344-hcph-8vgg
• https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-undetected-trace-trace-runctx-in-pickle-files
• https://github.com/mmaitre314/picklescan/security/advisories/GHSA-g344-hcph-8vgg

Check your stackJSON