Improper Validation of Unsafe Equivalence in Input Affecting grafana13.2 package, versions <0:13.2.1-0.2.hum1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-RHEL10-GRAFANA132-19506656
  • published3 Sept 2026
  • disclosed2 Sept 2026

Introduced: 2 Sep 2026

NewCVE-2026-84394  (opens in a new tab)
CWE-1289  (opens in a new tab)

How to fix?

Upgrade RHEL:10 grafana13.2 to version 0:13.2.1-0.2.hum1 or higher.
This issue was patched in RHSA-2026:65537.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana13.2 package and not the grafana13.2 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

fast-uri accepts a host that contains an unbalanced or misplaced authority bracket without reporting an error. A host that starts with an opening bracket but does not end with a closing bracket is neither validated as an IP literal nor canonicalized as a domain name, so parse() returns it as the host with error undefined, while Node's URL and the HTTP clients built on it resolve the same string to a different host. An application that reads the parsed host to make a host decision, such as an SSRF denylist, a redirect allowlist, or proxy routing, and then passes the original URL to an HTTP client evaluates its policy against a string that is not the host the request reaches. The same host is carried through normalize, equal, and resolve. This affects fast-uri versions 2.4.5, 3.1.6, and 4.1.3, and is fixed in 2.4.6, 3.1.7, and 4.1.4, where parse() reports a malformed host for any host that contains a bracket but is not a valid IPv6 literal.

CVSS Base Scores

version 3.1