CVE-2026-86196 Grav API Plugin before 1.0.20 Authentication Bypass via Host Header
Unauthenticated attackers can hijack password reset tokens via Host header manipulation to take over accounts, including super-admins.
- 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-2026-86196?
CVE-2026-86196 is a high-severity vulnerability in getgrav grav-plugin-api, published on 5 Sep 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
Grav API plugin versions before 1.0.20 build password reset links from the untrusted Host header in the forgot-password endpoint, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can send password reset requests for any account with a malicious Host header, intercept the reset token from victim emails, and complete account takeover including super-admin accounts.
Weakness: CWE-290
Which versions are affected by CVE-2026-86196?
How do I fix CVE-2026-86196?
No fix has been published for CVE-2026-86196 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86196 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86196 exists.
Sources
Also known as GHSA-gg9g-7x93-5gq2.