CVE-2026-87861 — cross-origin reuse of a Negotiate connection
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, le…
Published: 2026-10-20 · CVSS: Unscored
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7