CVE-2025-71349CWE-502insecure-deserialization

CVE-2025-71349

High · published July 1, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
48.7
In the wild
Unconfirmed
What it is

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.

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
0.00613 · 48.7th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-07-01T03:16Z
References (3)
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf · [email protected]https://www.vulncheck.com/advisories/picklescan-arbitrary-code-execution-via-undetected-trace-trace-run-in-pickle-files · [email protected]https://github.com/mmaitre314/picklescan/security/advisories/GHSA-5qwp-399c-mjwf · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 30 JUN 22:08Z
    picklescan - Arbitrary Code Execution via Undetected trace.Trace.run in Pickle Files
    cvelistv5