SSRF in Phialsbasement Koboldcpp-Mcp-Server
CVE-2026-19373
A weakness has been identified in PhialsBasement KoboldCPP-MCP-Server 1.0.0. Affected by this issue is the function makeRequest of the file src/index.ts of the component BaseConfigSchema. Executing a manipulation of the argument apiUrl can lead to server-side request forgery. It is possible to launch the attack on the local host. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.001 (1.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Phialsbasement Koboldcpp-Mcp-Server — versions 1.0.0
Weakness classification (CWE)
References
- vuldb.com/vuln/387257 (technical-description, vdb-entry)
- vuldb.com/vuln/387257/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-19373 (third-party-advisory)
- vuldb.com/submit/866271 (third-party-advisory)
- github.com/PhialsBasement/KoboldCPP-MCP-Server/issues/3 (issue-tracking)
- github.com/PhialsBasement/KoboldCPP-MCP-Server/ (product)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
Frequently asked questions
- What is CVE-2026-19373?
- CVE-2026-19373 is a medium-severity vulnerability in Phialsbasement Koboldcpp-Mcp-Server, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-08-09.
- How severe is CVE-2026-19373?
- Medium severity. CVSS v3 base score is 5.3 out of 10.