CVE-2026-61743
Medium · CVSS 6.3Published 2026-09-21
CVSS
6.3
Medium
EPSS
0.3%
exploit probability
Active Exploit
No
not yet listed
What is CVE-2026-61743?
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.2, Chartbrew's server/modules/safeRequest.js calls validateOutboundUrl() to resolve and validate a target hostname, but request-promise performs a separate DNS resolution for the actual connection. An authenticated user who can create or test API connections and controls the target DNS name can return a public address during validation and a private address during the request, bypassing the protections implemented by server/modules/outboundTargetPolicy.js. This DNS rebinding condition can expose internal services, localhost resources, or cloud metadata endpoints. This issue is fixed in version 5.2.2.
CVSS Score Explained
CVSS 6.3 is Medium severity. Exploitation usually requires some specific conditions (local access, user interaction, or a particular config). Still worth patching in your next maintenance window.
EPSS Exploitation Probability
EPSS 0.3% — low probability of active exploitation. Can be handled in normal patch cycles.
References & Patches
- ›https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3
- PATCHhttps://github.com/chartbrew/chartbrew/releases/tag/v5.2.2
- ›https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f
- ›https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26f
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