BPP-326: Bump google.golang.org/grpc from 1.72.1 to 1.82.1

[dependabot]

Bumps google.golang.org/grpc from 1.72.1 to 1.82.1.

Release notes

Sourced from google.golang.org/grpc's releases.

Release 1.82.1

Security

• server: Stop reading from the connection when flooded by HTTP/2 frames. The default value for this limit is 100 frames, excluding DATA and HEADERS, and may be changed by setting environment variable GRPC_GO_EXPERIMENTAL_CONTROL_BUFFER_THROTTLE_LIMIT.
• xds/rbac: Support Metadata and RequestedServerName permissions matcher fields. If present in a DENY rule, previously these would be ignored and fail-open.
• xds/rbac: Fix panic when parsing unsupported fields in NotRule/NotId permissions.
• xds/rbac: Support the deprecated source_ip principal identifier by treating it as equivalent to direct_remote_ip.

Release 1.82.0

Behavior Changes

• server: Remove support for GRPC_GO_EXPERIMENTAL_DISABLE_STRICT_PATH_CHECKING environment varibale. Strict incoming RPC path validation (which has been the default since v1.79.3) can no longer be disabled. (#9112)
• transport: Add environment variable to change the default max header list size from 16MB to 8KB. This may be enabled by setting GRPC_GO_EXPERIMENTAL_ENABLE_8KB_DEFAULT_HEADER_LIST_SIZE=true. This will be enabled by default in a subsequent release. (#9019)
• balancer: Load Balancing policy registry is now case-sensitive. Set GRPC_GO_EXPERIMENTAL_CASE_SENSITIVE_BALANCER_REGISTRIES=false (and file an issue) to revert to case-insensitive behavior. (#9017)

New Features

• experimental/stats: Expose a new API, NewContextWithLabelCallback, to register a callback that is invoked when telemetry labels are added. (#8877)
  • Special Thanks: @​seth-epps
• client: Return a portion of the response body in the error message, when the client receives an unexpected non-gRPC HTTP response, to make debugging easier. (#8929)
  • Special Thanks: @​chengxilo
• server: Add environment variable GRPC_GO_SERVER_GOROUTINE_LABELS that controls setting runtime/pprof.Labels on goroutines spawned by the server. Set GRPC_GO_SERVER_GOROUTINE_LABELS=grpc.method=true to add the grpc.method label on goroutines spawned to handle incoming requests. (#9082)
  • Special Thanks: @​dfinkel

Bug Fixes

• xds/server: Fix a memory leak of HTTP filter instances occurring when route configurations are updated in-place during a Route Discovery Service (RDS) update. (#9138)
• grpc: In the deprecated gzip Compressor (used via the deprecated WithCompressor dial option), enforce the MaxRecvMsgSize limit on the decompressed message buffer, preventing excessive memory allocation from highly compressed payloads. (#9114)
  • Special Thanks: @​evilgensec
• stats/opentelemetry: Record retry attempts, grpc.previous-rpc-attempts, at the call level and not the attempt level. (#8923)
• encoding: Ensure Close() is always called on readers returned from Compressor.Decompress if possible. (#9135)
• channelz: Fix the LastMessageSentTimestamp and LastMessageReceivedTimestamp fields in SocketMetrics to ensure they contain correct timestamp values. (#9109)

Release 1.81.1

Security

• xds/rbac: Fix a potential authorization bypass caused by incorrectly falling through URI/DNS SANs to Subject Distinguished Name (DN) when matching the authenticated principal name. With this fix, only the first non-empty identity source will be used, as per gRFC A41. (#9111)
  • Special Thanks: @​al4an444

Bug Fixes

• otel: Segregate client and server RPC information used for metrics and traces, to avoid one overwriting the other. (#9081)

Release 1.81.0

Behavior Changes

• balancer/rls: Switch gauge metrics to asynchronous emission (once per collection cycle) to reduce telemetry noise and align with other gRPC language implementations. (#8808)

Dependencies

... (truncated)

Commits

• ebd8f06 Change version to 1.82.1 (#9238)
• 4ea465d Cherry-pick commits (#9236)
• 9494a2c Change version to 1.82.1-dev (#9171)
• bd23985 Change version to 1.82.0 (#9170)
• 0f3086d Fix minor issues not covered by PR #9137 (#9147)
• fef07fb internal: Split v3procservicepb import into pb and grpc for extproc (#9163)
• 91dd64f transport: surface subsequent data when receiving non-gRPC header (#8929)
• adc97de test/kokoro: add config for regional-td test (#9158)
• 57c9ff1 xds: ensure full-string matching for RBAC Filter rules (#9148)
• b58f32d server: Set a pprof label on new stream goroutines (#9082)
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[greptile-apps]

Greptile Summary

Updates the gRPC dependency and its resolved module graph.

• Bumps google.golang.org/grpc from v1.72.1 to v1.82.1.
• Updates related protobuf, OpenTelemetry, and golang.org/x transitive dependencies.
• Advances the module’s Go version from 1.24 to 1.25 and removes the explicit toolchain pin.
• Refreshes checksums for the resolved dependency versions.

Confidence Score: 5/5

The PR appears safe to merge with no concrete changed-code failure identified.

The manifest and checksum updates are internally consistent, and no repository call path was found that turns the upgraded dependencies or Go version change into an actionable failure.

Important Files Changed

Filename	Overview
go.mod	Updates gRPC, its transitive dependency graph, and the module Go version; no concrete reachable regression was established.
go.sum	Refreshes checksums consistently with the dependency versions selected in go.mod.

_{Reviews (1): Last reviewed commit: "Bump google.golang.org/grpc from 1.72.1 ..." | Re-trigger Greptile}

[devin-ai-integration]

Merge safety review (BPP-326)

Recommendation: safe to merge.

Exposure: google.golang.org/grpc is a purely indirect dependency (pulled in via helm.sh/helm/v3 / k8s.io/* / otel). There is no grpc import anywhere in this repo's ~320 lines of Go. GHSA-hrxh-6v49-42gf is a server-side HTTP/2 frame-flood DoS; render is an offline CLI that renders Helm charts and never runs a gRPC server, so the advisory was not exploitable here — this bump is SLA hygiene, not an incident fix.

Breaking changes in 1.72.1 → 1.82.1 — all in surfaces this repo does not use:

• strict RPC path validation can no longer be disabled (GRPC_GO_EXPERIMENTAL_DISABLE_STRICT_PATH_CHECKING removed) — server-side
• LB policy registry is now case-sensitive — client/LB
• xds/RBAC matcher and RLS metric changes — xds
• new default frame-throttle limit (100 non-DATA/HEADERS frames) — server-side

Also in this diff: golang.org/x/* (crypto 0.43→0.50, net 0.45→0.53, text 0.30→0.36, …), protobuf 1.36.6→1.36.11, go-logr 1.4.2→1.4.3 — all patch/minor with no API breaks. The go directive goes 1.24.0 → 1.25.0 and the toolchain go1.24.2 pin is dropped; the release/verify workflows pin actions/setup-go@v4 with go-version: 1.21.3, which still works because GOTOOLCHAIN=auto downloads the 1.25 toolchain (confirmed by Verify Example passing on this branch).

Verification performed locally on this branch (go1.25.0): go build ./..., go vet ./..., go test ./... (no test files), and the release cross-compile matrix (darwin/amd64, linux/amd64, linux/arm64) all pass. Ran example/scripts/render.sh on both main and this branch — all eight *.generated.yaml outputs are byte-for-byte identical, so rendering behaviour is unchanged.

Blast radius: flux consumes render as a pinned release binary (scripts/set-render-version.sh → v0.1.2), so merging only affects the latest prerelease build until someone cuts and pins a new tag.

Minor follow-up, out of scope here: the three workflows still pin go-version: 1.21.3 and rely on toolchain auto-download; worth aligning them with the go.mod directive in a separate PR.