CVE-2026-101059 — utcp-http before 1.1.4 OAuth2 tokenUrl Trust Boundary Bypass
utcp-http before 1.1.4 fails to validate the OAuth2 tokenUrl field from remote OpenAPI specifications, allowing attackers to redirect credential submission to arbitrary endpoint…
Published: 2026-09-27 · CVSS: 7.1 · CVSS 4.0
utcp-http before 1.1.4 fails to validate the OAuth2 tokenUrl field from remote OpenAPI specifications, allowing attackers to redirect credential submission to arbitrary endpoints. When a victim registers an attacker-controlled OpenAPI spec and invokes a generated OAuth2-protected tool, the library POSTs the victim's client_id and client_secret to the attacker-supplied token endpoint without URL validation.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7