What is CVE-2026-18486?

CVE-2026-18486 is a high-severity vulnerability, classified under Information Disclosure. CVSS score: 8.8/10. Published 2026-09-04.

How severe is CVE-2026-18486?

High severity. CVSS v3 base score is 8.8 out of 10.

CVE-2026-18486

CVE-2026-18486

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.

Vulnerability class: Information Disclosure

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

psirt@us.ibm.com

Frequently asked questions

What is CVE-2026-18486?: CVE-2026-18486 is a high-severity vulnerability, classified under Information Disclosure. CVSS score: 8.8/10. Published 2026-09-04.
How severe is CVE-2026-18486?: High severity. CVSS v3 base score is 8.8 out of 10.