CVE-2026-8500

Name: CVE-2026-8500
Creator: NVD / NIST
Published: 2026-05-13T23:16:43.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.65%

Last modified Jun 17, 2026

CVE-2026-8500 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 argument on the command line, allowing for command injection.. EPSS estimates a 1.65% chance of exploitation in the next 30 days.

Description

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 argument on the command line, allowing for command injection.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.65%

73.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

References

Timeline

Published: May 13, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-8500?

How severe is CVE-2026-8500?

CVE-2026-8500 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.

How do I fix CVE-2026-8500?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8500?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST