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.

CVSS 4.0

6.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS 3.1

7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-25)

CWE

CWE-918

Published

2026-07-20

Modified

2026-10-24

Record from

the NVD, synced 2026-10-25

References

• https://github.com/hyperdxio/hyperdx/commit/1705b37ac68acc222cd038327ed79e167e256a1b
• https://github.com/hyperdxio/hyperdx/issues/2588
• https://github.com/hyperdxio/hyperdx/pull/2593
• https://github.com/hyperdxio/hyperdx/releases/tag/%40hyperdx%2Fapp%402.31.0
• https://www.vulncheck.com/advisories/hyperdx-ssrf-via-clickhouse-proxy-test-endpoint

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