CVE-2026-66414 Leantime Open Redirect in Login Controller via redirectUrl Parameter
Unauthenticated attackers can redirect authenticated users to malicious sites via the login redirectUrl parameter, facilitating phishing and credential theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-66414?
CVE-2026-66414 is a medium-severity vulnerability in Leantime, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Leantime 3.6.2 contains an open redirect vulnerability in the Login controller that allows unauthenticated attackers to redirect authenticated users to arbitrary external sites by manipulating the redirectUrl POST parameter. Attackers can craft a malicious login URL with a tampered redirectUrl value that bypasses FILTER_SANITIZE_URL validation to redirect victims to attacker-controlled sites for phishing or credential theft.
Weakness: CWE-601
Which versions are affected by CVE-2026-66414?
How do I fix CVE-2026-66414?
No fix has been published for CVE-2026-66414 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-66414 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-66414 exists.
Sources
Also known as GHSA-pjx9-wh57-j26p, GHSA-wprg-q8m6-jhp9.