Vulnerability · Published Sep 4, 2026 · Assigned by ibm
CVE-2026-77822IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint
High 8.2
In plain English
A high-severity server-side request forgery in ContextForge MCP Gateway from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)8.2High
Exploit odds (30 days)0.4%top 68.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | ContextForge MCP Gateway | <= v1.0.8 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
References
- https://www.ibm.com/support/pages/node/7286055 vendor-advisory, patch