Merge e11f2a85b3 into 376e178ab5

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [google.golang.org/grpc](https://redirect.github.com/grpc/grpc-go) |
`v1.79.2` → `v1.79.3` |
![age](https://developer.mend.io/api/mc/badges/age/go/google.golang.org%2fgrpc/v1.79.3?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/go/google.golang.org%2fgrpc/v1.79.2/v1.79.3?slim=true)
|

### GitHub Vulnerability Alerts

####
[CVE-2026-33186](https://redirect.github.com/grpc/grpc-go/security/advisories/GHSA-p77j-4mvh-x3m3)

### Impact
_What kind of vulnerability is it? Who is impacted?_

It is an **Authorization Bypass** resulting from **Improper Input
Validation** of the HTTP/2 `:path` pseudo-header.

The gRPC-Go server was too lenient in its routing logic, accepting
requests where the `:path` omitted the mandatory leading slash (e.g.,
`Service/Method` instead of `/Service/Method`). While the server
successfully routed these requests to the correct handler, authorization
interceptors (including the official `grpc/authz` package) evaluated the
raw, non-canonical path string. Consequently, "deny" rules defined using
canonical paths (starting with `/`) failed to match the incoming
request, allowing it to bypass the policy if a fallback "allow" rule was
present.

**Who is impacted?**
This affects gRPC-Go servers that meet both of the following criteria:
1. They use path-based authorization interceptors, such as the official
RBAC implementation in `google.golang.org/grpc/authz` or custom
interceptors relying on `info.FullMethod` or `grpc.Method(ctx)`.
2. Their security policy contains specific "deny" rules for canonical
paths but allows other requests by default (a fallback "allow" rule).

The vulnerability is exploitable by an attacker who can send raw HTTP/2
frames with malformed `:path` headers directly to the gRPC server.

### Patches
_Has the problem been patched? What versions should users upgrade to?_

Yes, the issue has been patched. The fix ensures that any request with a
`:path` that does not start with a leading slash is immediately rejected
with a `codes.Unimplemented` error, preventing it from reaching
authorization interceptors or handlers with a non-canonical path string.

Users should upgrade to the following versions (or newer):
* **v1.79.3**
* The latest **master** branch.

It is recommended that all users employing path-based authorization
(especially `grpc/authz`) upgrade as soon as the patch is available in a
tagged release.

### Workarounds
_Is there a way for users to fix or remediate the vulnerability without
upgrading?_

While upgrading is the most secure and recommended path, users can
mitigate the vulnerability using one of the following methods:

#### 1. Use a Validating Interceptor (Recommended Mitigation)
Add an "outermost" interceptor to your server that validates the path
before any other authorization logic runs:

```go
func pathValidationInterceptor(ctx context.Context, req any, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
    if info.FullMethod == "" || info.FullMethod[0] != '/' {
        return nil, status.Errorf(codes.Unimplemented, "malformed method name")
    }   
    return handler(ctx, req)
}

// Ensure this is the FIRST interceptor in your chain
s := grpc.NewServer(
    grpc.ChainUnaryInterceptor(pathValidationInterceptor, authzInterceptor),
)
```

#### 2. Infrastructure-Level Normalization
If your gRPC server is behind a reverse proxy or load balancer (such as
Envoy, NGINX, or an L7 Cloud Load Balancer), ensure it is configured to
enforce strict HTTP/2 compliance for pseudo-headers and reject or
normalize requests where the `:path` header does not start with a
leading slash.

#### 3. Policy Hardening
Switch to a "default deny" posture in your authorization policies
(explicitly listing all allowed paths and denying everything else) to
reduce the risk of bypasses via malformed inputs.

---

### Release Notes

<details>
<summary>grpc/grpc-go (google.golang.org/grpc)</summary>

###
[`v1.79.3`](https://redirect.github.com/grpc/grpc-go/releases/tag/v1.79.3):
Release 1.79.3

[Compare
Source](https://redirect.github.com/grpc/grpc-go/compare/v1.79.2...v1.79.3)

### Security

- server: fix an authorization bypass where malformed :path headers
(missing the leading slash) could bypass path-based restricted "deny"
rules in interceptors like `grpc/authz`. Any request with a
non-canonical path is now immediately rejected with an `Unimplemented`
error.
([#&#8203;8981](https://redirect.github.com/grpc/grpc-go/issues/8981))

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "" (UTC), Automerge - At any time (no
schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Never, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/cloudnative-pg/plugin-barman-cloud).

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Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Taskfile.yml

@@ -6,6 +6,8 @@ output: prefixed
 
 # Variables that are shared across tasks.
 vars:
+  GO_VERSION:
+    sh: sed -n 's/^toolchain go//p' go.mod
   # renovate: datasource=docker depName=kindest/node versioning=semver
   E2E_KUBERNETES_VERSION: v1.35.1
   E2E_CLUSTER_NAME: barman-cloud-plugin-e2e-{{.E2E_KUBERNETES_VERSION}}
@@ -128,8 +130,6 @@ tasks:
   go-test:
     desc: Run go test
     env:
-      # renovate: datasource=docker depName=golang versioning=semver
-      GOLANG_IMAGE_VERSION: 1.26.1
       # renovate: datasource=git-refs depname=kubernetes packageName=https://github.com/kubernetes/kubernetes versioning=semver
       K8S_VERSION: 1.31.0
       # renovate: datasource=git-refs depName=controller-runtime packageName=https://github.com/kubernetes-sigs/controller-runtime versioning=semver
@@ -137,7 +137,7 @@ tasks:
     cmds:
       - >
         GITHUB_REF= dagger -s call -m ./dagger/gotest
-        --go-version ${GOLANG_IMAGE_VERSION}
+        --go-version {{.GO_VERSION}}
         --kube-version ${K8S_VERSION}
         --setup-envtest-version ${SETUP_ENVTEST_VERSION}
         unit-test --src .
@@ -231,7 +231,7 @@ tasks:
     cmds:
       - >
         GITHUB_REF= dagger -s call -m github.com/purpleclay/daggerverse/docker@${DAGGER_DOCKER_SHA}
-        build --dir . --file containers/Dockerfile.plugin --platform linux/amd64
+        build --dir . --file containers/Dockerfile.plugin --args GO_VERSION={{.GO_VERSION}} --platform linux/amd64
         publish --ref {{ .REGISTRY_NAME }}:{{ .REGISTRY_PORT }}/plugin-barman-cloud --tags testing
 
   # We build an image and push it to a local registry.
@@ -248,7 +248,7 @@ tasks:
     cmds:
       - >
         GITHUB_REF= dagger -s call -m github.com/purpleclay/daggerverse/docker@${DAGGER_DOCKER_SHA}
-        build --dir . --file containers/Dockerfile.sidecar --platform linux/amd64
+        build --dir . --file containers/Dockerfile.sidecar --args GO_VERSION={{.GO_VERSION}} --platform linux/amd64
         publish --ref {{ .REGISTRY_NAME }}:{{ .REGISTRY_PORT }}/sidecar-barman-cloud --tags testing
 
   build-images:
@@ -305,8 +305,6 @@ tasks:
       - build-images
       - start-kind-cluster
     vars:
-      # renovate: datasource=docker depName=golang versioning=semver
-      GOLANG_IMAGE_VERSION: 1.26.1
       KUBECONFIG_PATH:
         sh: mktemp -t kubeconfig-XXXXX
     env:
@@ -317,15 +315,12 @@ tasks:
         GITHUB_REF= dagger call -m  dagger/e2e/ run
         --source .
         --kubeconfig {{.KUBECONFIG_PATH}}
-        --go-version {{ .GOLANG_IMAGE_VERSION }}
+        --go-version {{.GO_VERSION}}
 
   e2e-ephemeral:
     desc: Run e2e tests in an ephemeral k3s cluster
     deps:
       - build-images
-    vars:
-      # renovate: datasource=docker depName=golang versioning=semver
-      GOLANG_IMAGE_VERSION: 1.26.1
     env:
       _EXPERIMENTAL_DAGGER_RUNNER_HOST: docker-container://{{ .DAGGER_ENGINE_CONTAINER_NAME }}
     cmds:
@@ -334,7 +329,7 @@ tasks:
         --source .
         --ca certs/ca.pem
         --registry {{.REGISTRY_NAME}}:{{.REGISTRY_PORT}}
-        --go-version {{ .GOLANG_IMAGE_VERSION }}
+        --go-version {{.GO_VERSION}}
 
   ci:
     desc: Run the CI pipeline
@@ -373,12 +368,12 @@ tasks:
       - >
         dagger call -m github.com/purpleclay/daggerverse/docker@${DAGGER_DOCKER_SHA}
         --registry ghcr.io --username $REGISTRY_USER --password env:REGISTRY_PASSWORD
-        build --dir . --file containers/Dockerfile.plugin --platform linux/amd64 --platform linux/arm64
+        build --dir . --file containers/Dockerfile.plugin --args GO_VERSION={{.GO_VERSION}} --platform linux/amd64 --platform linux/arm64
         publish --ref {{.PLUGIN_IMAGE_NAME}} --tags {{.IMAGE_VERSION}}
       - >
         dagger call -m github.com/purpleclay/daggerverse/docker@${DAGGER_DOCKER_SHA}
         --registry ghcr.io --username $REGISTRY_USER --password env:REGISTRY_PASSWORD
-        build --dir . --file containers/Dockerfile.sidecar --platform linux/amd64 --platform linux/arm64
+        build --dir . --file containers/Dockerfile.sidecar --args GO_VERSION={{.GO_VERSION}} --platform linux/amd64 --platform linux/arm64
         publish --ref {{.SIDECAR_IMAGE_NAME}} --tags {{.IMAGE_VERSION}}
 
   controller-gen:

containers/Dockerfile.plugin

@@ -1,5 +1,7 @@
 # Build the manager binary
-FROM --platform=$BUILDPLATFORM golang:1.26.1 AS gobuilder
+# GO_VERSION must be passed as a build arg (read from go.mod toolchain directive by Taskfile)
+ARG GO_VERSION
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION} AS gobuilder
 ARG TARGETOS
 ARG TARGETARCH
 

containers/Dockerfile.sidecar

@@ -5,7 +5,9 @@
 # Both components are built before going into a distroless container
 
 # Build the manager binary
-FROM --platform=$BUILDPLATFORM golang:1.26.1 AS gobuilder
+# GO_VERSION must be passed as a build arg (read from go.mod toolchain directive by Taskfile)
+ARG GO_VERSION
+FROM --platform=$BUILDPLATFORM golang:${GO_VERSION} AS gobuilder
 ARG TARGETOS
 ARG TARGETARCH
 

go.mod

@@ -7,7 +7,7 @@ toolchain go1.26.1
 require (
 	github.com/cert-manager/cert-manager v1.19.4
 	github.com/cloudnative-pg/api v1.28.1
-	github.com/cloudnative-pg/barman-cloud v0.4.1-0.20260302035520-53b8620f1bd6
+	github.com/cloudnative-pg/barman-cloud v0.5.0
 	github.com/cloudnative-pg/cloudnative-pg v1.28.1
 	github.com/cloudnative-pg/cnpg-i v0.3.1
 	github.com/cloudnative-pg/cnpg-i-machinery v0.4.2
@@ -16,7 +16,7 @@ require (
 	github.com/onsi/gomega v1.39.1
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/viper v1.21.0
-	google.golang.org/grpc v1.79.2
+	google.golang.org/grpc v1.79.3
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.35.2
 	k8s.io/apiextensions-apiserver v0.35.2
@@ -117,7 +117,7 @@ require (
 	golang.org/x/net v0.49.0 // indirect
 	golang.org/x/oauth2 v0.34.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
 	golang.org/x/term v0.39.0 // indirect
 	golang.org/x/text v0.33.0 // indirect
 	golang.org/x/time v0.14.0 // indirect

go.sum

@@ -18,8 +18,8 @@ github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UF
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cloudnative-pg/api v1.28.1 h1:hp/TDgR+RrTa4EMp/pAKZia+kZ52i8ZPLG+JG10eeVU=
 github.com/cloudnative-pg/api v1.28.1/go.mod h1:J0RTwrOYxQP17N1YMrDxcUmr/0wPYHQW179P7ibkVsM=
-github.com/cloudnative-pg/barman-cloud v0.4.1-0.20260302035520-53b8620f1bd6 h1:BpKKrciaTMC01jMgwWOosC/S8pvDFCxZdJx2ahzksIQ=
-github.com/cloudnative-pg/barman-cloud v0.4.1-0.20260302035520-53b8620f1bd6/go.mod h1:N/ax2XSnj67scfJ9iFXKxCRMLFghD9B2XX5/SrRsPys=
+github.com/cloudnative-pg/barman-cloud v0.5.0 h1:DykSaX4o7ee2vyu5FQoG1RJsntHd+EIttIKZbJPlB1Q=
+github.com/cloudnative-pg/barman-cloud v0.5.0/go.mod h1:SO2HzLa+GWlSIpGyxnISoJAFPIcaa/qDa33Bb3jefac=
 github.com/cloudnative-pg/cloudnative-pg v1.28.1 h1:HdOUWgFhta558uHfXeO/199qCApxaj5yi05x6nWNmgs=
 github.com/cloudnative-pg/cloudnative-pg v1.28.1/go.mod h1:yhRa4GqJAjNd0tT9AiRgk1KdqLhMjo/JmGGoASRl2CU=
 github.com/cloudnative-pg/cnpg-i v0.3.1 h1:fKj8NoToWI11HUL2UWYJBpkVzmaTvbs3kDMo7wQF8RU=
@@ -277,8 +277,8 @@ golang.org/x/oauth2 v0.34.0 h1:hqK/t4AKgbqWkdkcAeI8XLmbK+4m4G5YeQRrmiotGlw=
 golang.org/x/oauth2 v0.34.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
-golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
-golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
 golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
 golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
@@ -295,8 +295,8 @@ google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 h1:
 google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:+rXWjjaukWZun3mLfjmVnQi18E1AsFbDN9QdJ5YXLto=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 h1:gRkg/vSppuSQoDjxyiGfN4Upv/h/DQmIR10ZU8dh4Ww=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
-google.golang.org/grpc v1.79.2 h1:fRMD94s2tITpyJGtBBn7MkMseNpOZU8ZxgC3MMBaXRU=
-google.golang.org/grpc v1.79.2/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
+google.golang.org/grpc v1.79.3 h1:sybAEdRIEtvcD68Gx7dmnwjZKlyfuc61Dyo9pGXXkKE=
+google.golang.org/grpc v1.79.3/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
 google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=