What is CVE-2026-3490?

CVE-2026-3490 is a critical-severity vulnerability in Picklescan, classified under CWE-183. CVSS score: 10.0/10. Published 2026-06-17.

How severe is CVE-2026-3490?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Vulnerability in Picklescan

CVE-2026-3490

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.s…

EPSS: 0.006 (46.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Picklescan — versions 0, 1.0.4

Weakness classification (CWE)

CWE-183

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-3490?: CVE-2026-3490 is a critical-severity vulnerability in Picklescan, classified under CWE-183. CVSS score: 10.0/10. Published 2026-06-17.
How severe is CVE-2026-3490?: Critical severity. CVSS v3 base score is 10.0 out of 10.