What is CVE-2026-8500?

CVE-2026-8500 is a critical-severity vulnerability in Evank Web::passwd, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-05-13.

How severe is CVE-2026-8500?

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

RCE in Evank Web::passwd

CVE-2026-8500

Web::Passwd versions through 0.03 for Perl is vulnerable to RCE. Web::Passwd is a small CGI application for managing htpasswd files using the htpasswd command. The user parameter is not validated or escaped, and is used as the last argum…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.001 (26.6th percentile) — read the EPSS interpretation.

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

Evank Web::passwd — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

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Frequently asked questions

What is CVE-2026-8500?: CVE-2026-8500 is a critical-severity vulnerability in Evank Web::passwd, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-05-13.
How severe is CVE-2026-8500?: Critical severity. CVSS v3 base score is 9.8 out of 10.