{"id":"CVE-2026-109321","revision":"f213ade859274cb88128c75d99170737","records":[{"revision":"f213ade859274cb88128c75d99170737","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109321","aliases":[],"title":"Grav Login OAuth Plugin before 1.4.3 Predictable Local Credentials Authentication Bypass","description":"Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic <provider>.<id> 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.","state":0,"publishedAt":"2026-10-12T16:05:13.414+00:00","modifiedAt":"2026-10-18T12:13:29.858+00:00","affected":[{"ecosystem":"Vendor product","name":"grav-plugin-login-oauth","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"getgrav\",\n                    \"product\": \"grav-plugin-login-oauth\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.0.0-beta.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"1.4.3\"\n                        },\n                        {\n                            \"version\": \"1.4.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/getgrav/grav-plugin-login-oauth\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1,"severity":"CRITICAL"}],"references":["https://github.com/getgrav/grav/security/advisories/GHSA-mj8v-hvf6-73gm","https://www.vulncheck.com/advisories/grav-login-oauth-plugin-before-1.4.3-predictable-local-credentials-authentication-bypass"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109321","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109321","identifiers":["CVE-2026-109321"]},"retained":false,"historicalAffected":[]}],"coverage":[]}