Medium 6.3Published Sep 21, 2026

CVE-2026-61743Chartbrew: DNS Rebinding SSRF Bypass in Outbound Request Validation

Updated under an hour ago (2026-10-19 09:10 UTC)

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It affects chartbrew. Add what you run to find out whether that includes you.

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Exploited in the last 30 days

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: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness (CWE): CWE-350
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Sep 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

chartbrew chartbrew chartbrew:chartbrew (from the name)	before 5.2.2	CNA record

References

https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9537-vm84-j26fx-refsource-confirm
https://github.com/chartbrew/chartbrew/commit/d38d745fe9e45563be8c33e4c7a17788ee6f13a3x-refsource-misc
https://github.com/chartbrew/chartbrew/releases/tag/v5.2.2x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.