EUVD-2026-75798
GHSA-87q9-x2gp-qchr
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Remote unauthenticated login with known default credentials grants full administrative control, so AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H; scope unchanged as impact is confined to the gateway.
Primary rating from Vendor (ibm).
CVSS VectorVendor: ibm
Lifecycle Timeline
3DescriptionCVE.org
IBM ContextForge MCP Gateway 1.0.0 through 1.0.7 could allow a remote attacker to gain administrative access due to the use of default credentials.
AnalysisAI
Administrative account takeover in IBM ContextForge MCP Gateway versions 1.0.0 through 1.0.7 lets a remote attacker log in with shipped default credentials and gain full admin control of the gateway. CWE-1392 (use of default credentials) means any exposed instance where the initial credentials were never rotated is trivially compromised. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the deployed IBM ContextForge MCP Gateway (1.0.0-1.0.7) still has its shipped default administrative credentials in place - i.e., an operator never rotated them - and that the attacker can reach the gateway's authentication interface over the network. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, 9.8) reflects a genuinely severe, network-reachable, unauthenticated, low-complexity issue with full confidentiality, integrity, and availability impact once admin access is obtained. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the fix per IBM's advisory at https://www.ibm.com/support/pages/node/7286834 (patch available from vendor; upgrade beyond the 1.0.0-1.0.7 range to the vendor-released fixed build). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, immediately apply the vendor patch to all IBM ContextForge MCP Gateway instances running versions 1.0.0 through 1.0.7; if patching cannot be completed immediately, isolate affected systems from production networks and disable remote access. …
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More in Contextforge Mcp Gateway
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Credential theft and privilege escalation in IBM ContextForge MCP Gateway v1.0.7 and earlier allow a remote low-privileg
Authenticated users of IBM ContextForge MCP Gateway through v1.0.4 can bypass the gateway's payload protection mechanism
Same weakness CWE-1392 – Use of Default Credentials
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External POC / Exploit Code
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