SSRF in Hyperdxio Hyperdx
CVE-2026-63731
HyperDX before 2.31.0 contains a server-side request forgery vulnerability that allows authenticated team members to direct the server to arbitrary internal destinations by supplying a caller-controlled host parameter to the ClickHouse proxy test endpoint with no URL validation or allowlist enforcement. Attackers can exploit the reflected error responses from the endpoint to disclose internal service response bodies, enabling access to internal APIs, container services, and cloud provider metadata endpoints.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.004 (34.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Hyperdxio Hyperdx — versions 2.0.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (issue-tracking, technical-description, exploit)
- disclosure@vulncheck.com (issue-tracking, patch)
- disclosure@vulncheck.com (release-notes, patch)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-63731?
- CVE-2026-63731 is a high-severity vulnerability in Hyperdxio Hyperdx, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-07-20.
- How severe is CVE-2026-63731?
- High severity. CVSS v3 base score is 7.7 out of 10.