CVE-2025-71343

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Source

https://cve.org/CVERecord?id=CVE-2025-71343

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71343.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-71343

Aliases

GHSA-p9w7-82w4-7q8m

Published

2026-07-04T01:23:32.430Z

Modified

2026-07-08T08:06:53.493609065Z

Severity

7.6 (High) CVSS_V4 - 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 CVSS Calculator

Summary

picklescan - Arbitrary Code Execution via lib2to3.pgen2.pgen.ParserGenerator.make_label Detection Bypass

Details

picklescan before 0.0.30 fails to detect malicious pickle files that exploit lib2to3.pgen2.pgen.ParserGenerator.make_label function in the reduce method. Attackers can craft malicious pickle files with embedded code that evades detection but executes arbitrary commands when pickle.load() is called.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71343.json",
    "cwe_ids": [
        "CWE-502"
    ],
    "cna_assigner": "VulnCheck"
}

References

Affected packages

Git / github.com/mmaitre314/picklescan

Affected ranges

Type

GIT

Repo

https://github.com/mmaitre314/picklescan

Events

Introduced

Fixed

1931c2d04eaca8d20597705ff39cab78ba364e4b

Database specific

{
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.0.30"
        }
    ]
}

Affected versions

v0.*

v0.0.10

v0.0.11

v0.0.12

v0.0.13

v0.0.14

v0.0.15

v0.0.17

v0.0.18

v0.0.19

v0.0.2

v0.0.20

v0.0.21

v0.0.22

v0.0.23

v0.0.24

v0.0.25

v0.0.26

v0.0.27

v0.0.28

v0.0.29

v0.0.3

v0.0.4

v0.0.5

v0.0.6

v0.0.7

v0.0.8

v0.0.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-71343.json"