CVE-2026-53513 is a Better Auth SSRF flaw (CVSS 9.6) in the SSO plugin. It exposes cloud metadata and enables account takeover. Patch to 1.6.11 now. #BetterAuth #SSRF #CVE202653513 #SSO #OIDC https://securityonline.info/better-auth-ssrf-cve-2026-53513/?utm_source=mastodon&utm_medium=jetpack_social