Grav Login OAuth Plugin before 1.4.3 Predictable Local Credentials Authentication Bypass
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.
CVE-2026-109321
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109321
grav-plugin-login-oauth
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/getgrav/grav-plugin-login-oauth",
"vendor": "getgrav",
"product": "grav-plugin-login-oauth",
"versions": [
{
"status": "affected",
"version": "1.0.0-beta.1",
"lessThan": "1.4.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.4.3",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109321
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #34694 · Revision 1
- Added to Heist Feed
- Publisher date