# CVE-2026-32811: GO-2026-4742 - Heimdall: Path received via Envoy gRPC corrupted when containing query string in github.com/dadrus/heimdall

Source: https://junglewise.ai/threats/cve-2026-32811-heimdall-path-received-via-envoy-grpc-corrupted-when-containing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-23  
License: CC BY 4.0 with a link back

CVE-2026-32811 · Severity: low · CVSS 3.1 · Published 2026-03-23

Heimdall: Path received via Envoy gRPC corrupted when containing query string in github.com/dadrus/heimdall

Technologies: [github.com/dadrus/heimdall (Go)](https://junglewise.ai/threats/technologies/github-com-dadrus-heimdall). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-32811 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-32811 being exploited in the wild.

**How severe is CVE-2026-32811?** Low severity, with a CVSS score of 3.1, published 23 March 2026.

**Which products and versions are affected?** github.com/dadrus/heimdall (Go) SEMVER:introduced=0.7.0-alpha,fixed=0.17.11.

**Is there a fix for CVE-2026-32811?** Yes. github.com/dadrus/heimdall (Go): upgrade to 0.17.11 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2026-32811?** Check whether you run github.com/dadrus/heimdall (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/dadrus/heimdall (Go): upgrade to 0.17.11 or later

  ```sh
  go get github.com/dadrus/heimdall@v0.17.11
  ```


## Affected products

- github.com/dadrus/heimdall (Go) SEMVER:introduced=0.7.0-alpha,fixed=0.17.11

## Identifiers

- CVE-2026-32811
- GHSA-r8x2-fhmf-6mxp
- GO-2026-4742

## Related threats

- [Heimdall IP spoofing via unvalidated forwarding headers](https://junglewise.ai/threats/cve-2026-57210-heimdall-ip-spoofing-via-unvalidated-forwarding-headers)
- [Heimdall Forwarded header injection in proxy mode](https://junglewise.ai/threats/cve-2026-57209-heimdall-forwarded-header-injection-via-unsanitized-host-header)
- [dadrus Heimdall authorization bypass via path normalization mismatch](https://junglewise.ai/threats/cve-2026-42274-dadrus-heimdall-authorization-bypass-via-path-normalization)
- [Dadrus Heimdall case-sensitive host matching policy bypass](https://junglewise.ai/threats/cve-2026-42273-dadrus-heimdall-case-sensitive-host-matching-policy-bypass)
- [dadrus Heimdall authorization bypass via case-sensitive URL encoding](https://junglewise.ai/threats/cve-2026-42272-dadrus-heimdall-authorization-bypass-via-case-sensitive-url)