
CVE-2026-111497: The Brotli Bug One xmlrpc.php Pingback Can Reach, and Why Turning Off XML-RPC the Usual Way Does Not Close It
CVE-2026-111497 is a 9.2 Brotli decoder bug in CISA's KEV catalog. One unauthenticated pingback can reach it, and the common xmlrpc_enabled filter does not close that route. What to check, block and patch.
Security14 min read



