CVE-2026-18486 IBM ContextForge MCP Gateway is affected by credential disclosure and privilege escalation via jq filter execution
Remote authenticated attackers can execute jq filters to disclose credentials and escalate privileges in IBM ContextForge MCP Gateway.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18486?
CVE-2026-18486 is a high-severity code injection vulnerability in IBM ContextForge MCP Gateway, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM ContextForge MCP Gateway <= v1.0.7 MCP Context Forge could allow a remote authenticated attacker to obtain sensitive credentials and escalate privileges due to improper validation of jq filters.
Weakness: CWE-200
Which versions are affected by CVE-2026-18486?
It affects 1 product.
Products include Ibm Contextforge.
How do I fix CVE-2026-18486?
No fix has been published for CVE-2026-18486 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-18486 being exploited?
There is no known exploitation of CVE-2026-18486 in the wild and no public exploit code.
Other vulnerabilities in IBM ContextForge MCP Gateway
- CVE-2026-78573 IBM ContextForge MCP Gateway is affected by use of default credentials
- CVE-2026-77822 Server-side request forgery in ContextForge MCP Gateway
- CVE-2026-18905 IBM ContextForge MCP Gateway is affected by server-side request forgery via DNS TOCTOU at tool invocation
- CVE-2026-18489 IBM ContextForge Translate is affected by cross-client credential context confusion
- CVE-2026-77825 IBM ContextForge MCP Gateway is affected by path traversal
Sources
Also known as GHSA-2hj7-884r-x6jr.