by Kastro
Paper/Archive/CVE-2026-3490

CVE-2026-3490

picklescan picklescan — picklescan - Universal Blocklist Bypass via pkgutil.resolve_name

EPSS 0.8%public exploitCVSS 10.0
critical.is priorityof 100
52
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 57.3.573 × 2011.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
picklescan< 1.0.41.0.4CNA

Scores by source

VulnCheck (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
VulnCheck (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/mmaitre314/picklescan/security/advisories/GHSA-vvpj-8cmc-gx39writeupvulncheck.com/advisories/picklescan-universal-blocklist-bypass-via-pkgutil-resolve-name