CVE-2026-8500: Web::Passwd versions through 0.03 for Perl is vulnerable to RCE

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-13 · updated 2026-10-26
Weakness: CWE-78

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.

Affected products

EVANK Web::Passwd: through 0.03

References

https://httpd.apache.org/docs/current/programs/htpasswd.html
https://metacpan.org/release/EVANK/Web-Passwd-0.03
http://www.openwall.com/lists/oss-security/2026/05/13/8

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