CVE-2025-71376CWE-502insecure-deserialization

CVE-2025-71376

High · published June 23, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
30.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00380 · 30.8th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-06-23T17:16Z
References (3)
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-7cq8-mj8x-j263 · [email protected]https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-idlelib-autocomplete-autocomplete-fetch-completions · [email protected]https://github.com/mmaitre314/picklescan/security/advisories/GHSA-7cq8-mj8x-j263 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 23 JUN 12:12Z
    picklescan - Arbitrary Code Execution via Undetected idlelib.autocomplete.AutoComplete.fetch_completions
    cvelistv5