picklescan – Arbitrary Code Execution via Undetected idlelib.autocomplete.AutoComplete.fetch_completions_CVE-2025-71376

7.6 / 10

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

Description

picklescan before 0.0.29 fails to detect malicious pickle files using idlelib.autocomplete.AutoComplete.fetch_completions in reduce methods. Attackers can embed undetected code in pickle files that executes arbitrary commands when loaded by victims.

Basic Information

ID CVE-2025-71376

Source VulnCheck

Published Jun 23, 2026 at 12:12

Affected Product

Vendor picklescan

Product picklescan

Affected Versions picklescan picklescan 0

CWE Classification

CWE-502

References

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    "lastseen": "",
    "description": "picklescan before 0.0.29 fails to detect malicious pickle files using idlelib.autocomplete.AutoComplete.fetch_completions in reduce methods. Attackers can embed undetected code in pickle files that executes arbitrary commands when loaded by victims.",
    "published": "2026-06-23T12:12:55.259Z",
    "modified": "2026-06-23T12:12:55.259Z",
    "type": "cve",
    "title": "picklescan - Arbitrary Code Execution via Undetected idlelib.autocomplete.AutoComplete.fetch_completions",
    "source": "VulnCheck",
    "references": "https://github.com/mmaitre314/picklescan/security/advisories/GHSA-7cq8-mj8x-j263\nhttps://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-idlelib-autocomplete-autocomplete-fetch-completions",
    "id": "CVE-2025-71376",
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    "sourceData": "picklescan picklescan 0",
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    "cvss": {
        "score": 7.6,
        "severity": "HIGH",
        "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
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        "privilegesRequired": "",
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        "availabilityImpact": "",
        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "picklescan",
    "version": "0",
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