CVE-2026-8500 Web::Passwd versions through 0.03 for Perl is vulnerable to RCE
An attacker can execute arbitrary commands via the user parameter in Web::Passwd due to lack of input validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8500?
CVE-2026-8500 is a critical command injection vulnerability in EVANK Web::Passwd, published on 13 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-78
Which versions are affected by CVE-2026-8500?
How do I fix CVE-2026-8500?
No fix has been published for CVE-2026-8500 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-8500 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8500 exists.
Sources
Also known as GHSA-jrw9-jqqp-jcq9.