IBM ContextForge MCP Gateway up to 1.0.11/1.1.0 jq filter guard module jsonpath_filter incomplete blacklist

Summaryinfo

A vulnerability described as critical has been identified in IBM ContextForge MCP Gateway up to 1.0.11/1.1.0. The affected element is an unknown function of the component jq filter guard module. Executing a manipulation of the argument jsonpath_filter can lead to incomplete blacklist. The identification of this vulnerability is CVE-2026-110189. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in IBM ContextForge MCP Gateway up to 1.0.11/1.1.0. It has been declared as critical. This vulnerability affects an unknown code block of the component jq filter guard module. The manipulation of the argument jsonpath_filter with an unknown input leads to a incomplete blacklist vulnerability. The CWE definition for the vulnerability is CWE-184. The product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete. As an impact it is known to affect availability. CVE summarizes:

IBM ContextForge MCP Gateway 1.0.8 through 1.0.11, and v1.1.0 is vulnerable to denial of service due to an incomplete denylist in the jq filter guard module (CWE-184). An authenticated remote attacker can supply a crafted `jsonpath_filter` value containing `halt`, `halt_error`, or unbounded-loop built-ins that bypass the safety check, causing gateway worker process termination or sustained resource exhaustion.

The advisory is shared for download at ibm.com. This vulnerability was named CVE-2026-110189 since 10/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 11/13/2026). The MITRE ATT&CK project declares the attack technique as T1562.006.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Artificial Intelligence Software

Vendor

• IBM

Name

• ContextForge MCP Gateway

Version

• 1.0
• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.1.0

License

• commercial

Website

• Vendor: https://www.ibm.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion