Improper Encoding or Escaping of Output Affecting github.com/dadrus/heimdall/internal/handler/envoyextauth/grpcv3 package, versions >=0.7.0-alpha <0.17.11
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMDADRUSHEIMDALLINTERNALHANDLERENVOYEXTAUTHGRPCV3-15763265
- published25 Mar 2026
- disclosed23 Mar 2026
- creditJonas Dittrich
Introduced: 23 Mar 2026
CVE-2026-32811 (opens in a new tab)How to fix?
Upgrade github.com/dadrus/heimdall/internal/handler/envoyextauth/grpcv3 to version 0.17.11 or higher.
Overview
Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output in the processing of gRPC requests received from Envoy when the path contains a query string. An attacker can cause incorrect path handling by sending specially crafted requests with query strings, potentially leading to unintended authorization decisions or bypasses.