CVE-2026-110279
HIGH
MEDIUM
Priority: 0.00
BB Relevance:
66/100
Published: 2026-11-13
Modified: 2026-11-13
First seen: 2026-11-13
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
None
Description
IBM ContextForge MCP Gateway 1.0.0 through 1.1.0 is vulnerable to improper credential handling because the X-Upstream-Authorization request header can override the gateway-managed upstream credential for OAuth (authorization_code and client_credentials), bearer and basic authenticated gateways, which could allow an authenticated user to cause upstream requests to be made with a different credential and bypass per-user permission and audit attribution.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| IBM | ContextForge MCP Gateway | 1.0.0 |
References & Advisories (1)
vendor-advisory
patch