diff --git a/.github/workflows/fuzzing-and-coverage.yml b/.github/workflows/fuzzing-and-coverage.yml
new file mode 100644
index 0000000..09be5de
--- /dev/null
+++ b/.github/workflows/fuzzing-and-coverage.yml
@@ -0,0 +1,132 @@
+name: Continuous Fuzzing and Coverage
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+  schedule:
+    - cron: '0 3 * * *'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+env:
+  CARGO_TERM_COLOR: always
+
+defaults:
+  run:
+    working-directory: AURUM_full_bundle_v1_with_golden
+    shell: bash
+
+jobs:
+  fuzz-matrix:
+    name: Fuzz smoke (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 45
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install stable Rust
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+
+      - name: Install nightly for fuzzing
+        run: rustup toolchain install nightly --profile minimal
+
+      - name: Install cargo-fuzz
+        run: cargo +nightly install cargo-fuzz
+
+      - name: Run smoke fuzzers
+        run: ../scripts/ci/run_cargo_fuzz.sh
+        env:
+          RUST_FUZZ_TOOLCHAIN: nightly
+          FUZZ_RUNS: 2500
+
+  coverage:
+    name: Coverage (ubuntu-latest)
+    runs-on: ubuntu-latest
+    timeout-minutes: 40
+    needs: fuzz-matrix
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install stable Rust
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+
+      - name: Install coverage tooling
+        run: |
+          rustup component add llvm-tools-preview
+          cargo install cargo-llvm-cov
+
+      - name: Generate coverage reports
+        run: |
+          cargo llvm-cov clean --workspace
+          cargo llvm-cov --workspace --all-features --lcov --output-path target/coverage/lcov.info --html
+
+      - name: Upload coverage artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-${{ github.sha }}
+          path: |
+            AURUM_full_bundle_v1_with_golden/target/coverage/lcov.info
+            AURUM_full_bundle_v1_with_golden/target/llvm-cov/html
+
+  golden-vectors:
+    name: Validate golden vectors
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    needs: fuzz-matrix
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install stable Rust
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+
+      - name: Ensure GOLDEN.json matches generated vectors
+        run: ../scripts/ci/check_golden_vectors.sh
+
+  nightly-longrun:
+    name: Nightly long-run fuzzers
+    if: github.event_name == 'schedule'
+    runs-on: ubuntu-latest
+    timeout-minutes: 240
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install stable Rust
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+
+      - name: Install nightly for fuzzing
+        run: rustup toolchain install nightly --profile minimal
+
+      - name: Install cargo-fuzz
+        run: cargo +nightly install cargo-fuzz
+
+      - name: Run long fuzzers
+        run: ../scripts/ci/run_cargo_fuzz.sh
+        env:
+          RUST_FUZZ_TOOLCHAIN: nightly
+          FUZZ_MODE: nightly
+          FUZZ_MAX_TOTAL_TIME: 7200
+
+      - name: Upload nightly fuzz artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: nightly-fuzz-artifacts-${{ github.run_id }}
+          path: |
+            AURUM_full_bundle_v1_with_golden/**/fuzz/artifacts
+            AURUM_full_bundle_v1_with_golden/**/fuzz/corpus
+          if-no-files-found: ignore
diff --git a/scripts/ci/check_golden_vectors.sh b/scripts/ci/check_golden_vectors.sh
new file mode 100755
index 0000000..e7039f7
--- /dev/null
+++ b/scripts/ci/check_golden_vectors.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+WORKSPACE_DIR="$REPO_ROOT/AURUM_full_bundle_v1_with_golden"
+GOLDEN_FILE="AURUM_full_bundle_v1_with_golden/GOLDEN.json"
+
+if [ ! -f "$WORKSPACE_DIR/Cargo.toml" ]; then
+  echo "Workspace manifest not found at $WORKSPACE_DIR/Cargo.toml."
+  exit 1
+fi
+
+pushd "$WORKSPACE_DIR" >/dev/null
+cargo run -p aurum-pentest --bin gen_golden
+popd >/dev/null
+
+if ! git -C "$REPO_ROOT" diff --quiet -- "$GOLDEN_FILE"; then
+  git -C "$REPO_ROOT" diff --stat -- "$GOLDEN_FILE"
+  echo "Golden vectors are stale. Run 'cargo run -p aurum-pentest --bin gen_golden' and commit the changes." >&2
+  exit 1
+fi
+
+echo "Golden vectors are up-to-date."
diff --git a/scripts/ci/run_cargo_fuzz.sh b/scripts/ci/run_cargo_fuzz.sh
new file mode 100755
index 0000000..027f033
--- /dev/null
+++ b/scripts/ci/run_cargo_fuzz.sh
@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+WORKSPACE_DIR="$REPO_ROOT/AURUM_full_bundle_v1_with_golden"
+
+if [ ! -f "$WORKSPACE_DIR/Cargo.toml" ]; then
+  echo "Workspace manifest not found at $WORKSPACE_DIR/Cargo.toml."
+  exit 0
+fi
+
+cd "$WORKSPACE_DIR"
+
+FUZZ_MANIFESTS=()
+while IFS= read -r manifest; do
+  FUZZ_MANIFESTS+=("$manifest")
+done < <(find . -path './target' -prune -o -path '*/fuzz/Cargo.toml' -print)
+
+if [ "${#FUZZ_MANIFESTS[@]}" -eq 0 ]; then
+  echo "No cargo-fuzz manifests found; skipping fuzzing step."
+  exit 0
+fi
+
+TOOLCHAIN="${RUST_FUZZ_TOOLCHAIN:-nightly}"
+CARGO_CMD=(cargo "+${TOOLCHAIN}")
+
+if ! command -v cargo &>/dev/null; then
+  echo "cargo command not available in PATH."
+  exit 1
+fi
+
+if [ "${FUZZ_MODE:-smoke}" = "nightly" ]; then
+  MAX_TIME="${FUZZ_MAX_TOTAL_TIME:-7200}"
+  FUZZ_ARGS=(-- "-max_total_time=${MAX_TIME}")
+  MODE_DESC="nightly long-run"
+else
+  RUNS="${FUZZ_RUNS:-2000}"
+  FUZZ_ARGS=(-- "-runs=${RUNS}")
+  MODE_DESC="smoke"
+fi
+
+echo "Detected ${#FUZZ_MANIFESTS[@]} fuzz package(s); running in ${MODE_DESC} mode using toolchain '${TOOLCHAIN}'."
+
+for manifest in "${FUZZ_MANIFESTS[@]}"; do
+  crate_dir="$(dirname "$manifest")"
+  pushd "$crate_dir" >/dev/null
+
+  TARGETS=()
+  while IFS= read -r raw_target; do
+    raw_target="$(echo "$raw_target" | tr -d '\r')"
+    raw_target="$(echo "$raw_target" | xargs)"
+    [ -z "$raw_target" ] && continue
+    TARGETS+=("$raw_target")
+  done < <("${CARGO_CMD[@]}" fuzz list)
+
+  if [ "${#TARGETS[@]}" -eq 0 ]; then
+    echo "No fuzz targets defined in $crate_dir; skipping."
+    popd >/dev/null
+    continue
+  fi
+
+  for target in "${TARGETS[@]}"; do
+    echo "Running fuzz target '$target' in $crate_dir"
+    "${CARGO_CMD[@]}" fuzz run "$target" "${FUZZ_ARGS[@]}"
+  done
+
+  popd >/dev/null
+
+done