---
id: CVE-2026-86196
title: >-
  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
summary: >-
  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 s…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-290
vendor: getgrav
product: grav-plugin-api
affected:
  - grav-plugin-api < 1.0.20
published: '2026-09-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:05:53.177'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86196'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-262p-56vv-7v5r'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-api-plugin-before-1.0.20-authentication-bypass-via-host-header
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-08T17:17:48.067441Z'
cvssSource: cna
epss: 0.00435
epssPercentile: 0.35085
ingestedAt: '2026-09-06T09:53:13.675Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.