High severity · published Sep 5, 2026
CVE-2026-86196
Grav API Plugin before 1.0.20 Authentication Bypass via Host Header
8.7
CVSS
0.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav-plugin-api · getgrav
before 1.0.20 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-86196
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-86196
github.com
https://github.com/getgrav/grav/security/advisories/GHSA-262p-56vv-7v5r
www.vulncheck.com
https://www.vulncheck.com/advisories/grav-api-plugin-before-1.0.20-authentication-bypass-via-host-header
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