{"cve":"CVE-2026-27690","nvd":{"published":"2026-07-14T01:16:17.193","modified":"2026-10-24T22:10:00.210","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1},"cwes":["CWE-444"],"references":["https://me.sap.com/notes/3720138","https://url.sap/sapsecuritypatchday"],"products":["sap:approuter"],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-27690","score":0.00682,"percentile":0.5222,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-8m85-wqg7-c529","url":"https://osv.dev/vulnerability/GHSA-8m85-wqg7-c529","summary":"SAP Approuter Vulnerable to HTTP Request Smuggling","modified":"2026-09-01T21:40:52.618887Z","packages":[{"ecosystem":"npm","name":"@sap/approuter","purl":"pkg:npm/%40sap/approuter","ranges":["<20.10.0"],"fixed":["20.10.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}