diff --git a/.github/workflows/asvs-prove-absences.yml b/.github/workflows/asvs-prove-absences.yml
index 525ae4bce7..ac4bac53a7 100644
--- a/.github/workflows/asvs-prove-absences.yml
+++ b/.github/workflows/asvs-prove-absences.yml
@@ -156,7 +156,7 @@ jobs:
           python-version: "3.14"
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -241,7 +241,7 @@ jobs:
           python-version: "3.14"
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             engine/pyproject.toml
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d2a173ab3d..84a513b208 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -335,7 +335,7 @@ jobs:
       # from docker/locks/* and installs nothing).
       - name: Set up uv
         if: needs.changes.outputs.code == 'true' || github.event_name == 'push' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group'
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -1280,7 +1280,7 @@ jobs:
 
       - name: Set up uv
         if: needs.changes.outputs.code == 'true' || github.event_name == 'push' || github.event_name == 'workflow_dispatch' || github.event_name == 'merge_group'
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -2137,7 +2137,7 @@ jobs:
           exit 1
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -3045,7 +3045,7 @@ jobs:
             -Q "IF DB_ID('MessageFoundry') IS NULL CREATE DATABASE MessageFoundry"
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -3381,7 +3381,7 @@ jobs:
           python-version: "3.14"
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -3590,7 +3590,7 @@ jobs:
           python-version: "3.14"
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -3817,7 +3817,7 @@ jobs:
             -Q "IF DB_ID('MessageFoundry') IS NULL CREATE DATABASE MessageFoundry; ALTER DATABASE MessageFoundry SET READ_COMMITTED_SNAPSHOT ON WITH ROLLBACK IMMEDIATE;"
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
@@ -4027,7 +4027,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 666eba6a65..44ffe3e5f0 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -121,7 +121,7 @@ jobs:
         with:
           persist-credentials: false # CodeQL uploads via the job token, not a persisted git credential
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        uses: github/codeql-action/init@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3
         with:
           languages: ${{ matrix.language }}
           # security-extended adds higher-recall security queries on top of the default suite.
@@ -159,6 +159,6 @@ jobs:
         #      results while every check stays green. The correct form leads with
         #      `github.event_name == 'pull_request' &&`, which short-circuits before the null read.
         #      Do not "simplify" that conjunct away.
-        uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        uses: github/codeql-action/analyze@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/dast.yml b/.github/workflows/dast.yml
index 287b937738..e776c2a172 100644
--- a/.github/workflows/dast.yml
+++ b/.github/workflows/dast.yml
@@ -81,7 +81,7 @@ jobs:
       # uv via the SHA-pinned action (ci.yml's pin), not an unpinned `pip install uv`: a version pin
       # does not satisfy Scorecard PinnedDependenciesID and this repo already carries two such findings.
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           # NO CACHE, unlike every other setup-uv use in this repo. Left at the default this would be
           # the only workflow here that BOTH restores a dependency cache AND is reachable from a
@@ -194,7 +194,7 @@ jobs:
         with:
           python-version: "3.14"
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           # No cache, for the release-tag cache-poisoning reason given on dast-auth's copy above.
           enable-cache: false
diff --git a/.github/workflows/dependabot-lock-resync.yml b/.github/workflows/dependabot-lock-resync.yml
index 0243398e11..2fa9d27f4d 100644
--- a/.github/workflows/dependabot-lock-resync.yml
+++ b/.github/workflows/dependabot-lock-resync.yml
@@ -107,7 +107,7 @@ jobs:
       - name: Mint a scoped GitHub App token
         id: app-token
         if: steps.creds.outputs.present == 'true'
-        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
+        uses: actions/create-github-app-token@64ab729a6294000f5aa4a4bc0b73d1f32bc45510 # v3.3.0
         with:
           app-id: ${{ secrets.LOCK_RESYNC_APP_ID }}
           private-key: ${{ secrets.LOCK_RESYNC_APP_PRIVATE_KEY }}
@@ -129,7 +129,7 @@ jobs:
 
       - name: Set up uv
         if: steps.creds.outputs.present == 'true'
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
 
       - name: Re-export the lock files (DEP-1 — byte-for-byte identical flags/paths)
         if: steps.creds.outputs.present == 'true'
diff --git a/.github/workflows/dependency-floors.yml b/.github/workflows/dependency-floors.yml
index f5b6eddbc1..7cbe628e12 100644
--- a/.github/workflows/dependency-floors.yml
+++ b/.github/workflows/dependency-floors.yml
@@ -88,7 +88,7 @@ jobs:
         with:
           python-version: "3.14"
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
         with:
           cache-dependency-glob: |
             pyproject.toml
diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index d58de5a33a..17234c9159 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -129,7 +129,7 @@ jobs:
         with:
           python-version: "3.14"
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
       - name: Install the engine plus the fuzzing toolchain
         run: |
           set -euo pipefail
diff --git a/.github/workflows/ingress-rate-probe.yml b/.github/workflows/ingress-rate-probe.yml
index 8f4f2abd57..7205f7220c 100644
--- a/.github/workflows/ingress-rate-probe.yml
+++ b/.github/workflows/ingress-rate-probe.yml
@@ -66,7 +66,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
 
       - name: Set up Python 3.14
         uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
diff --git a/.github/workflows/invariant-mutations.yml b/.github/workflows/invariant-mutations.yml
index d49782a44b..5122a5d2ed 100644
--- a/.github/workflows/invariant-mutations.yml
+++ b/.github/workflows/invariant-mutations.yml
@@ -65,7 +65,7 @@ jobs:
         with:
           python-version: "3.14"
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
       - name: Install the engine and the test toolchain
         run: |
           set -euo pipefail
diff --git a/.github/workflows/quality-advisory.yml b/.github/workflows/quality-advisory.yml
index 5ec9ad56de..bf360a025f 100644
--- a/.github/workflows/quality-advisory.yml
+++ b/.github/workflows/quality-advisory.yml
@@ -501,7 +501,7 @@ jobs:
         with:
           python-version: "3.14"
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
       - name: Qt headless system deps
         # BOUNDED AND RETRIED. Unguarded, this step turns an external apt-mirror hiccup into a
         # blocked merge queue: measured 2026-08-18, three hangs across two attempts on three
@@ -854,7 +854,7 @@ jobs:
         with:
           python-version: "3.14"
       - name: Set up uv
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
       - name: Qt headless system deps
         # BOUNDED AND RETRIED. Unguarded, this step turns an external apt-mirror hiccup into a
         # blocked merge queue: measured 2026-08-18, three hangs across two attempts on three
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index c7fe1d0398..8d4feb1afc 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -56,7 +56,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Run Scorecard
-        uses: ossf/scorecard-action@2d1146689b8cda280b9bc96326124645441f03bc # v2.4.4
+        uses: ossf/scorecard-action@fa7117db83c52d787ae5a89f350999701505d78e # v2.5.0
         with:
           results_file: results.sarif
           results_format: sarif
@@ -69,6 +69,6 @@ jobs:
         # REDUNDANT, which is a different finding: code scanning holds the same findings and is what
         # a human actually queries, and `publish_results: true` above additionally sends the score to
         # the public OpenSSF API. A third copy on a retention clock served neither reader.
-        uses: github/codeql-action/upload-sarif@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        uses: github/codeql-action/upload-sarif@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3
         with:
           sarif_file: results.sarif