{"id":"CVE-2026-107349","revision":"f3e5d29528e74acd8d65ad94a11ee6c7","records":[{"revision":"f3e5d29528e74acd8d65ad94a11ee6c7","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-107349","aliases":[],"title":"Infinite loop on empty option name in startup options parameter in PgBouncer","description":"An infinite loop in PgBouncer 1.20.0 through 1.26.0 allows an unauthenticated remote attacker to cause a denial of service. A StartupMessage whose options parameter contains an empty parameter name, such as \"-c=\", makes the ignore_startup_parameters list lookup loop forever. Because PgBouncer serves all clients from a single process, this saturates a CPU core and makes PgBouncer unresponsive to all clients until the process is restarted.","state":0,"publishedAt":"2026-10-14T17:34:33.785+00:00","modifiedAt":"2026-10-16T20:19:16.649+00:00","affected":[{"ecosystem":"Vendor product","name":"PgBouncer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"PgBouncer\",\n                    \"vendor\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.20.0\",\n                            \"lessThan\": \"1.26.1\",\n                            \"versionType\": \"semver\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://www.pgbouncer.org/changelog.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107349","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-107349","identifiers":["CVE-2026-107349"]},"retained":false,"historicalAffected":[]}],"coverage":[]}