CVE-2026-18905: IBM ContextForge MCP Gateway (`mcp-contextforge-gateway`) <= v1.0.6 MCP Context Forge could allow a remote aut

Routine

HIGH 7.7UPGRADE

CVE-2026-18905 is a high-severity flaw (CVSS 7.7) affecting contextforge. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM ContextForge MCP Gateway (`mcp-contextforge-gateway`) <= v1.0.6 MCP Context Forge could allow a remote authenticated attacker to obtain sensitive information due to a DNS rebinding vulnerability during tool invocation.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-09-04
Last modified	2026-09-15

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-09-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-04 16:17 UTCPublished CVE record published
2026-09-15 15:21 UTCUpdated Record last modified

ibm contextforge UPGRADE

Affected: <= 1.0.6

Fixed in: newer than 1.0.6

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show contextforge

2. UPGRADE to newer than 1.0.6

pip install --upgrade "contextforge>1.0.6"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-18905?

contextforge: upgrade to newer than 1.0.6. Exact commands for each OS are on this page.

Is CVE-2026-18905 being exploited?

CVE-2026-18905 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-18905 affect?

CVE-2026-18905 affects contextforge. Severity is high (CVSS 7.7). IBM ContextForge MCP Gateway (`mcp-contextforge-gateway`) <= v1.0.6 MCP Context Forge could allow a remote authenticated attacker to obtain sensitive information due to a DNS rebinding vulnerability during tool invocation.

How urgent is CVE-2026-18905?

Priority 37/100. High severity

Related CVEs

CVE-2026-77825 MEDIUM 4.9 UPGRADE IBM ContextForge MCP Gateway 1.0.0 through 1.0.8 was vulnerable to path traversal in its Admin API log-downloa
CVE-2026-78573 CRITICAL 9.8 UPGRADE IBM ContextForge MCP Gateway 1.0.0 through 1.0.7 could allow a remote attacker to gain administrative access d
CVE-2026-77822 HIGH 8.2 UPGRADE IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due t
CVE-2026-18486 HIGH 8.8 UPGRADE IBM ContextForge MCP Gateway <= v1.0.7 MCP Context Forge could allow a remote authenticated attacker to obtain
CVE-2026-18489 HIGH 7.4 UPGRADE IBM ContextForge MCP Gateway - Translate utility <= 1.0.8 MCP Context Forge could allow a remote attacker to o

References

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