Vulnerability-Lookup

CVE-2026-18486 (GCVE-0-2026-18486)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:24 – Updated: 2026-09-10 15:07

Title

IBM ContextForge MCP Gateway is affected by credential disclosure and privilege escalation via jq filter execution

Summary

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.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 18:28 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

ibm mitre root

References

1 reference

URL	Tags
https://www.ibm.com/support/pages/node/7286052	vendor-advisorypatch

Impacted products

1 product

Vendor	Product	Version	CPE status
IBM	ContextForge MCP Gateway	Affected: <= v1.0.7 cpe:2.3:a:ibm:contextforge-mcp-gateway::::::::

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-18486

Vulnerability from fkie_nvd - Published: 2026-09-04 17:16 - Updated: 2026-09-15 15:05

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

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.

References

	URL	Tags
	psirt@us.ibm.com	https://www.ibm.com/support/pages/node/7286052	Patch, Vendor Advisory

Impacted products

	Vendor	Product	Version
	ibm	contextforge	*

JSON

To clipboard

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      "affectedData": [
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          "cpes": [
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            }
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    }
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        },
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        "impactScore": 5.9,
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GHSA-2HJ7-884R-X6JR

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-04 18:31

Details

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.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2026-18486"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T17:16:56Z",
    "severity": "HIGH"
  },
  "details": "IBM ContextForge MCP Gateway \u003c= 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.",
  "id": "GHSA-2hj7-884r-x6jr",
  "modified": "2026-09-04T18:31:31Z",
  "published": "2026-09-04T18:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18486"
    },
    {
      "type": "WEB",
      "url": "https://www.ibm.com/support/pages/node/7286052"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-18486 (GCVE-0-2026-18486)

FKIE_CVE-2026-18486

GHSA-2HJ7-884R-X6JR

Tags

Sightings

Nomenclature

Related by attack behaviour