{"id":"CVE-2026-27690","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-27690","summary":"SAP Approuter Vulnerable to HTTP Request Smuggling","details":"Due to an HTTP Request Smuggling vulnerability in SAP Approuter, an unauthenticated attacker could send a specially crafted HTTP request that leads to request-response desynchronization. This could result in the exposure of user responses and cause the system to become unavailable. This leads to a high impact on confidentiality and availability.","published":"2026-07-14T03:31:35Z","modified":"2026-09-01T21:40:52.618887Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},"epss":{"score":0.00682,"percentile":0.5079,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@sap/approuter","fixedVersion":"20.10.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27690"},{"type":"WEB","url":"https://me.sap.com/notes/3720138"},{"type":"WEB","url":"https://url.sap/sapsecuritypatchday"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-01T21:40:52.618887Z"}}