Path Traversal in Geldata Gel-Mcp
CVE-2026-7403
A security flaw has been discovered in geldata gel-mcp 0.1.0. This impacts the function list_rules/fetch_rule of the file src/gel_mcp/server.py. The manipulation of the argument rule_name results in path traversal. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.001
Affected products
- Geldata Gel-Mcp — versions 0.1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/360139 (technical-description, vdb-entry)
- vuldb.com/vuln/360139/cti (signature, permissions-required)
- vuldb.com/submit/803530 (third-party-advisory)
- github.com/geldata/gel-mcp/issues/11 (issue-tracking, exploit)
- github.com/geldata/gel-mcp/ (product)
Frequently asked questions
- What is CVE-2026-7403?
- CVE-2026-7403 is a medium-severity vulnerability in Geldata Gel-Mcp, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-04-29.
- How severe is CVE-2026-7403?
- Medium severity. CVSS v3 base score is 5.3 out of 10.