CVE-2026-3106 Multiple vulnerabilities in Teampass
Blind XSS in Teampass allows attackers to execute arbitrary JavaScript in an administrator's browser via the login form, potentially leading to account takeover.
- 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-2026-3106?
CVE-2026-3106 is a critical cross-site scripting vulnerability in Teampass Teampass, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Blind Cross-Site Scripting (XSS) in Teampass, versions prior to 3.1.5.16, within the password manager login functionality in the 'contraseña' parameter of the login form 'redacted/index.php'. During failed authentication attempts, the application does not properly clean or encode the information entered by the user in the username field. As a result, arbitrary JavaScript code is automatically executed in the administrator's browser when viewing failed login entries, resulting in a blind XSS condition.
Weakness: CWE-79
Which versions are affected by CVE-2026-3106?
It affects 1 product.
Products include Teampass Teampass.
How do I fix CVE-2026-3106?
No fix has been published for CVE-2026-3106 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-3106 being exploited?
There is no known exploitation of CVE-2026-3106 in the wild and no public exploit code.
Other vulnerabilities in Teampass Teampass
Sources
Also known as GHSA-v5c3-292h-hqp3.