GHSA-5rph-q42j-36j9

Suggest an improvement
Source
https://github.com/advisories/GHSA-5rph-q42j-36j9
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-5rph-q42j-36j9/GHSA-5rph-q42j-36j9.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-5rph-q42j-36j9
Withdrawn
2026-06-18T14:40:53Z
Published
2026-06-17T18:35:56Z
Modified
2026-09-10T03:50:48Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
Duplicate Advisory: Picklescan has pickle parsing logic flaw that leads to malicious pickle file bypass
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-9gvj-pp9x-gcfr. This link is maintained to preserve external references.

Original Description

picklescan before 0.0.27 contains a parsing logic error in the _list_globals function when handling STACK_GLOBAL opcodes, failing to track arguments in the correct range and allowing malicious pickle files to bypass detection. Attackers can craft pickle files with arguments at position zero to trigger unexpected exceptions and evade security scanning.

Database specific
{
    "cwe_ids":  [
        "CWE-391"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-06-18T14:40:53Z",
    "nvd_published_at":  "2026-06-17T17:16:41Z",
    "severity":  "CRITICAL"
}
References

Affected packages

PyPI / picklescan

Package

Name
picklescan
View open source insights on deps.dev
Purl
pkg:pypi/picklescan

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.0.1
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
0.0.7
0.0.8
0.0.9
0.0.10
0.0.11
0.0.12
0.0.13
0.0.14
0.0.15
0.0.16
0.0.17
0.0.18
0.0.19
0.0.20
0.0.21
0.0.22
0.0.23
0.0.24
0.0.25
0.0.26
0.0.27
0.0.28
0.0.29
0.0.30
0.0.31
0.0.32
0.0.33
0.0.34
0.0.35
1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5

Database specific

last_known_affected_version_range
"< 0.0.27"
source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-5rph-q42j-36j9/GHSA-5rph-q42j-36j9.json"