Detections
Analytics
CVE-2026-87861
critical
Description
When using ambient user credentials, an HTTP request directed to one origin may be dispatched over a connection previously authenticated via Negotiate for a different origin, leaving the request's intended credentials unused.
References
https://hackerone.com/reports/3972094
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105308