Interpretation Conflict Affecting github.com/dadrus/heimdall/internal/x/urlx package, versions <0.17.14
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMDADRUSHEIMDALLINTERNALXURLX-16415208
- published4 May 2026
- disclosed25 Apr 2026
- creditUnknown
Introduced: 25 Apr 2026
CVE-2026-42274 Â (opens in a new tab)How to fix?
Upgrade github.com/dadrus/heimdall/internal/x/urlx to version 0.17.14 or higher.
Overview
Affected versions of this package are vulnerable to Interpretation Conflict via a mismatch in path normalization between components. An attacker can gain unauthorized access to restricted resources or perform actions without proper authentication by crafting requests with specially constructed paths that exploit differences in how paths are interpreted. This is only exploitable if rule matching is performed using free wildcards without further constraints.
Workaround
This vulnerability can be mitigated by normalizing HTTP paths or rejecting HTTP paths containing relative path expressions in the layers in front of the affected component, or by including the expected rule ID in issued JWTs and validating it in downstream services.