Incorrect Behavior Order: Validate Before Canonicalize Affecting kube-fluentd-operator package, versions <1.18.2-r67


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-WOLFILATEST-KUBEFLUENTDOPERATOR-17254076
  • published9 Jun 2026
  • disclosed2 Apr 2026

Introduced: 2 Apr 2026

CVE-2026-34786  (opens in a new tab)
CWE-180  (opens in a new tab)

How to fix?

Upgrade Wolfi kube-fluentd-operator to version 1.18.2-r67 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kube-fluentd-operator package and not the kube-fluentd-operator package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static#applicable_rules evaluates several header_rules types against the raw URL-encoded PATH_INFO, while the underlying file-serving path is decoded before the file is served. As a result, a request for a URL-encoded variant of a static path can serve the same file without the headers that header_rules were intended to apply. In deployments that rely on Rack::Static to attach security-relevant response headers to static content, this can allow an attacker to bypass those headers by requesting an encoded form of the path. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.

CVSS Base Scores

version 3.1