diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8280f76..5d5e7ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.25.9'
+          go-version: '1.25.10'
 
       - name: Go Build
         run: |
@@ -343,7 +343,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.25.9'
+          go-version: '1.25.10'
           cache: true
 
       - name: Build f5-mock-icontrol sidecar
@@ -440,7 +440,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.25.9'
+          go-version: '1.25.10'
           cache: true
 
       - name: Digest validity (every @sha256 ref must resolve)
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 85413f7..a7e4164 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -60,7 +60,7 @@ jobs:
         uses: actions/setup-go@v5
         with:
           # Match ci.yml + release.yml + security-deep-scan.yml.
-          go-version: '1.25.9'
+          go-version: '1.25.10'
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 22bcb83..f50126e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ on:
 env:
   REGISTRY: ghcr.io
   # Keep in lock-step with .github/workflows/ci.yml (M-3).
-  GO_VERSION: '1.25.9'
+  GO_VERSION: '1.25.10'
   IMAGE_NAMESPACE: certctl-io
 
 jobs:
diff --git a/Dockerfile b/Dockerfile
index c5e4d4a..6f38257 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -63,7 +63,7 @@ RUN for i in 1 2 3; do \
     npm run build
 
 # Stage 2: Build Go binary
-FROM golang:1.25-alpine@sha256:5caaf1cca9dc351e13deafbc3879fd4754801acba8653fa9540cea125d01a71f AS builder
+FROM golang:1.25.10-alpine@sha256:8d22e29d960bc50cd025d93d5b7c7d220b1ee9aa7a239b3c8f55a57e987e8d45 AS builder
 
 # Proxy propagation (M-4, Issue #9) — see Stage 1 rationale.
 ARG HTTP_PROXY=
diff --git a/Dockerfile.agent b/Dockerfile.agent
index d2bed6a..a8df371 100644
--- a/Dockerfile.agent
+++ b/Dockerfile.agent
@@ -5,7 +5,7 @@
 # operator runbook; the pins here MUST be bumped in the same pass.
 
 # Stage 1: Build
-FROM golang:1.25-alpine@sha256:5caaf1cca9dc351e13deafbc3879fd4754801acba8653fa9540cea125d01a71f AS builder
+FROM golang:1.25.10-alpine@sha256:8d22e29d960bc50cd025d93d5b7c7d220b1ee9aa7a239b3c8f55a57e987e8d45 AS builder
 
 # Proxy propagation (M-4, Issue #9) — defaulted to empty so un-proxied builds
 # behave identically to the pre-fix tree. When `HTTP_PROXY`/`HTTPS_PROXY`/
diff --git a/api/openapi.yaml b/api/openapi.yaml
index 453f7d1..2ba89c0 100644
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -665,7 +665,7 @@ paths:
                   go_version:
                     type: string
                     description: Go toolchain version that compiled the binary (runtime.Version())
-                    example: go1.25.9
+                    example: go1.25.10
 
   # ─── Certificates ────────────────────────────────────────────────────
   /api/v1/certificates:
diff --git a/deploy/test/f5-mock-icontrol/Dockerfile b/deploy/test/f5-mock-icontrol/Dockerfile
index 47e0da2..aaf3b3b 100644
--- a/deploy/test/f5-mock-icontrol/Dockerfile
+++ b/deploy/test/f5-mock-icontrol/Dockerfile
@@ -6,8 +6,8 @@
 # Per H-001 guard: every FROM is digest-pinned. Operator re-pins
 # quarterly per docs/deployment-vendor-matrix.md.
 
-# golang:1.25.9-bookworm digest pinned per H-001.
-FROM golang:1.25.9-bookworm@sha256:1a1408bf8d2d3077f9508880caf0e8bb0fde195fe3c890e7ea480dfb66dc7827 AS builder
+# golang:1.25.10-bookworm digest pinned per H-001.
+FROM golang:1.25.10-bookworm@sha256:e3a54b77385b4f8a31c1db4d12429ffb3718ea76865731a787c497755d409547 AS builder
 WORKDIR /src
 COPY deploy/test/f5-mock-icontrol/ ./
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -trimpath -ldflags "-s -w" -o /out/f5-mock-icontrol .
diff --git a/deploy/test/f5-mock-icontrol/go.mod b/deploy/test/f5-mock-icontrol/go.mod
index b7632cc..8ef74c8 100644
--- a/deploy/test/f5-mock-icontrol/go.mod
+++ b/deploy/test/f5-mock-icontrol/go.mod
@@ -1,3 +1,3 @@
 module github.com/certctl-io/certctl/deploy/test/f5-mock-icontrol
 
-go 1.25.9
+go 1.25.10
diff --git a/docs/contributor/ci-pipeline.md b/docs/contributor/ci-pipeline.md
index 6d9ad91..5744bc4 100644
--- a/docs/contributor/ci-pipeline.md
+++ b/docs/contributor/ci-pipeline.md
@@ -53,7 +53,7 @@ Runs the Go build/test suite + 18 of 20 regression guards.
 
 Steps:
 1. `actions/checkout@v4`
-2. `actions/setup-go@v5` (Go 1.25.9)
+2. `actions/setup-go@v5` (Go 1.25.10)
 3. `go build ./cmd/...` (server, agent, mcp-server, cli)
 4. **gofmt drift** — `gofmt -l .` must be empty (Makefile::verify parity)
 5. **go mod tidy drift** — `go mod tidy && git diff --exit-code go.mod go.sum`
@@ -97,7 +97,7 @@ Single-job collapse of the prior 12-job matrix (per ci-pipeline-cleanup Phase 5
 
 Steps:
 1. `actions/checkout@v5`
-2. `actions/setup-go@v5` (Go 1.25.9, cache: true)
+2. `actions/setup-go@v5` (Go 1.25.10, cache: true)
 3. **Build f5-mock-icontrol sidecar** — only sidecar without published image
 4. **Bring up all vendor sidecars** — `docker compose --profile deploy-e2e up -d` (11 sidecars)
 5. **Run all vendor-edge e2e** — `go test -tags integration -race -count=1 -run 'VendorEdge_'`; output captured to `test-output.log`
diff --git a/docs/reference/connectors/iis.md b/docs/reference/connectors/iis.md
index 3c491c0..e5ef384 100644
--- a/docs/reference/connectors/iis.md
+++ b/docs/reference/connectors/iis.md
@@ -157,7 +157,7 @@ The real IIS connector validation lives in:
 - Windows Server 2019 or 2022 host (or Windows 10/11 Pro with Hyper-V)
 - Docker Desktop in Windows containers mode
   (Settings → "Switch to Windows containers")
-- Go 1.25.9 + git
+- Go 1.25.10 + git
 
 ### Procedure
 
diff --git a/go.mod b/go.mod
index 57ff3de..35f4e53 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/certctl-io/certctl
 
-go 1.25.9
+go 1.25.10
 
 require (
 	github.com/google/uuid v1.6.0
@@ -22,8 +22,8 @@ require (
 	github.com/leanovate/gopter v0.2.11
 	github.com/masterzen/winrm v0.0.0-20250927112105-5f8e6c707321
 	github.com/pkg/sftp v1.13.10
-	golang.org/x/crypto v0.48.0
-	golang.org/x/sync v0.19.0
+	golang.org/x/crypto v0.50.0
+	golang.org/x/sync v0.20.0
 	software.sslmate.com/src/go-pkcs12 v0.7.0
 )
 
@@ -111,9 +111,9 @@ require (
 	go.opentelemetry.io/otel v1.41.0 // indirect
 	go.opentelemetry.io/otel/metric v1.41.0 // indirect
 	go.opentelemetry.io/otel/trace v1.41.0 // indirect
-	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/net v0.53.0 // indirect
 	golang.org/x/oauth2 v0.34.0 // indirect
-	golang.org/x/sys v0.42.0 // indirect
-	golang.org/x/text v0.34.0 // indirect
+	golang.org/x/sys v0.43.0 // indirect
+	golang.org/x/text v0.36.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index ddbf013..2187407 100644
--- a/go.sum
+++ b/go.sum
@@ -482,8 +482,8 @@ golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.6.0/go.mod h1:OFC/31mSvZgRz0V1QTNCzfAI1aIRzbiufJtkMIlEp58=
-golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
-golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
+golang.org/x/crypto v0.50.0 h1:zO47/JPrL6vsNkINmLoo/PH1gcxpls50DNogFvB5ZGI=
+golang.org/x/crypto v0.50.0/go.mod h1:3muZ7vA7PBCE6xgPX7nkzzjiUq87kRItoJQM1Yo8S+Q=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -562,8 +562,8 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
-golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
-golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/net v0.53.0 h1:d+qAbo5L0orcWAr0a9JweQpjXF19LMXJE8Ey7hwOdUA=
+golang.org/x/net v0.53.0/go.mod h1:JvMuJH7rrdiCfbeHoo3fCQU24Lf5JJwT9W3sJFulfgs=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -591,8 +591,8 @@ golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-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/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181026203630-95b1ffbd15a5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -645,14 +645,14 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-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/sys v0.43.0 h1:Rlag2XtaFTxp19wS8MXlJwTvoh8ArU6ezoyFsMyCTNI=
+golang.org/x/sys v0.43.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
-golang.org/x/term v0.40.0 h1:36e4zGLqU4yhjlmxEaagx2KuYbJq3EwY8K943ZsHcvg=
-golang.org/x/term v0.40.0/go.mod h1:w2P8uVp06p2iyKKuvXIm7N/y0UCRt3UfJTfZ7oOpglM=
+golang.org/x/term v0.42.0 h1:UiKe+zDFmJobeJ5ggPwOshJIVt6/Ft0rcfrXZDLWAWY=
+golang.org/x/term v0.42.0/go.mod h1:Dq/D+snpsbazcBG5+F9Q1n2rXV8Ma+71xEjTRufARgY=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -663,8 +663,8 @@ golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
-golang.org/x/text v0.34.0/go.mod h1:homfLqTYRFyVYemLBFl5GgL/DWEiH5wcsQ5gSh1yziA=
+golang.org/x/text v0.36.0 h1:JfKh3XmcRPqZPKevfXVpI1wXPTqbkE5f7JA92a55Yxg=
+golang.org/x/text v0.36.0/go.mod h1:NIdBknypM8iqVmPiuco0Dh6P5Jcdk8lJL0CUebqK164=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -723,8 +723,8 @@ golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
-golang.org/x/tools v0.41.0 h1:a9b8iMweWG+S0OBnlU36rzLp20z1Rp10w+IY2czHTQc=
-golang.org/x/tools v0.41.0/go.mod h1:XSY6eDqxVNiYgezAVqqCeihT4j1U2CCsqvH3WhQpnlg=
+golang.org/x/tools v0.43.0 h1:12BdW9CeB3Z+J/I/wj34VMl8X+fEXBxVR90JeMX5E7s=
+golang.org/x/tools v0.43.0/go.mod h1:uHkMso649BX2cZK6+RpuIPXS3ho2hZo4FVwfoy1vIk0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/internal/api/handler/version.go b/internal/api/handler/version.go
index 2180d15..1abb81c 100644
--- a/internal/api/handler/version.go
+++ b/internal/api/handler/version.go
@@ -86,7 +86,7 @@ type VersionInfo struct {
 	BuildTime string `json:"build_time"`
 
 	// GoVersion is the Go toolchain version that compiled the binary
-	// (runtime.Version, e.g. "go1.25.9"). Useful when triaging stdlib
+	// (runtime.Version, e.g. "go1.25.10"). Useful when triaging stdlib
 	// behavior differences ("the deploy that broke was on 1.24, this one
 	// is on 1.25").
 	GoVersion string `json:"go_version"`