Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-82fg-2r99-h7v6
Advisory ID github_osv/GHSA-82fg-2r99-h7v6
Aliases
Summary Duplicate Advisory: PickleScan's pkgutil.resolve_name has a universal blocklist bypass ### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-vvpj-8cmc-gx39. This link is maintained to preserve external references. ### Original Description picklescan before 1.0.4 fails to block pkgutil.resolve_name, allowing attackers to bypass the entire blocklist by resolving any dangerous function through indirect REDUCE calls. Remote attackers can invoke any blocked function such as os.system, builtins.exec, or subprocess.call to achieve remote code execution.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-183 Permissive List of Allowed Inputs
System Score Found at
cvssv3.1 10.0 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-82fg-2r99-h7v6/GHSA-82fg-2r99-h7v6.json
cvssv4 10.0 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-82fg-2r99-h7v6/GHSA-82fg-2r99-h7v6.json
generic_textual CRITICAL
Reference id Reference type URL
https://github.com/mmaitre314/picklescan/security/advisories/GHSA-vvpj-8cmc-gx39
https://www.vulncheck.com/advisories/picklescan-universal-blocklist-bypass-via-pkgutil-resolve-name
CVE-2026-3490 https://nvd.nist.gov/vuln/detail/CVE-2026-3490
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-82fg-2r99-h7v6/GHSA-82fg-2r99-h7v6.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-82fg-2r99-h7v6/GHSA-82fg-2r99-h7v6.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.