Critical severity9.1NVD Advisory· Published Oct 12, 2026

CVE-2026-109321

Description

Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic . username and an unsalted MD5 hash of the provider identifier as the password, without disabling password login. Unauthenticated remote attackers who learn or guess a provider identifier can reproduce these credentials and log in, gaining administrative control of privileged accounts.

Affected products

Grav CMS/grav-plugin-login-oauthllm-create
Range: <1.4.3

Patches

Vulnerability mechanics

References

github.com/getgrav/grav/security/advisories/GHSA-mj8v-hvf6-73gmnvd
www.vulncheck.com/advisories/grav-login-oauth-plugin-before-1.4.3-predictable-local-credentials-authentication-bypassnvd

News mentions

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