What is CVE-2026-53874?

CVE-2026-53874 is a critical-severity vulnerability in Picklescan, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-06-17.

How severe is CVE-2026-53874?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Deserialization in Picklescan

CVE-2026-53874

picklescan before 1.0.1 contains an unsafe deserialization vulnerability allowing unauthenticated users to execute arbitrary code by hiding eval calls nested under callable objects via getattr. Attackers can embed malicious code in pickle…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Picklescan — versions 0, 1.0.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

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

Frequently asked questions

What is CVE-2026-53874?: CVE-2026-53874 is a critical-severity vulnerability in Picklescan, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-06-17.
How severe is CVE-2026-53874?: Critical severity. CVSS v3 base score is 9.8 out of 10.