OCPBUGS-80870: CVE-2026-33186 openshift4/ose-thanos-rhel9: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation [openshift-4.21]

[danielmellado]

• I added CHANGELOG entry for this change.
• Change is not relevant to the end user.

Changes

Bumps google.golang.org/grpc from v1.63.2 to v1.79.3 to fix CVE-2026-33186 (CVSS 9.1), an authorization bypass where gRPC-Go servers accepted HTTP/2 requests with a non-canonical :path (missing leading slash), causing path-based deny rules in authorization interceptors to be silently skipped. The previous pin to v1.63.2 for grpc/grpc-go#7314 is no longer needed as that was fixed in v1.66.0.

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: d6ef3b8b-46ad-48f9-9061-4d2c66e99a9b

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[openshift-ci-robot]

@danielmellado: This pull request references Jira Issue OCPBUGS-80870, which is invalid:

• release note text must be set and not match the template OR release note type must be set to "Release Note Not Required". For more information you can reference the OpenShift Bug Process.
• expected Jira Issue OCPBUGS-80870 to depend on a bug targeting a version in 4.22.0 and in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but no dependents were found

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

Details

In response to this:

• I added CHANGELOG entry for this change.
• Change is not relevant to the end user.

Changes

Bumps google.golang.org/grpc from v1.63.2 to v1.79.3 to fix CVE-2026-33186 (CVSS 9.1), an authorization bypass where gRPC-Go servers accepted HTTP/2 requests with a non-canonical :path (missing leading slash), causing path-based deny rules in authorization interceptors to be silently skipped. The previous pin to v1.63.2 for grpc/grpc-go#7314 is no longer needed as that was fixed in v1.66.0.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danielmellado

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [danielmellado]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[danielmellado]

/retest-required

[openshift-ci]

@danielmellado: all tests passed!

Full PR test history. Your PR dashboard.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. I understand the commands that are listed here.