diff --git a/apps/web/src/app/api/orgs/[id]/detections/route.ts b/apps/web/src/app/api/orgs/[id]/detections/route.ts
index 878bcec..41fcc8f 100644
--- a/apps/web/src/app/api/orgs/[id]/detections/route.ts
+++ b/apps/web/src/app/api/orgs/[id]/detections/route.ts
@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+import { parsePaginationParam } from "@/lib/pagination";
 import { getSupabaseAdmin } from "@/lib/supabase";
 
 // GET /api/orgs/[id]/detections — List detections for org
@@ -28,8 +29,8 @@ export async function GET(
     const ruleId = url.searchParams.get("rule_id");
     const since = url.searchParams.get("since");
     const until = url.searchParams.get("until");
-    const limit = Math.min(parseInt(url.searchParams.get("limit") || "50"), 200);
-    const offset = parseInt(url.searchParams.get("offset") || "0");
+    const limit = parsePaginationParam(url.searchParams.get("limit"), 50, { min: 1, max: 200 });
+    const offset = parsePaginationParam(url.searchParams.get("offset"), 0);
 
     let query = admin.from("detections").select("*", { count: "exact" })
       .eq("organization_id", orgId)
diff --git a/apps/web/src/app/api/orgs/[id]/remediations/route.ts b/apps/web/src/app/api/orgs/[id]/remediations/route.ts
index ab7cf1c..09bf563 100644
--- a/apps/web/src/app/api/orgs/[id]/remediations/route.ts
+++ b/apps/web/src/app/api/orgs/[id]/remediations/route.ts
@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+import { parsePaginationParam } from "@/lib/pagination";
 import { getSupabaseAdmin } from "@/lib/supabase";
 
 // GET /api/orgs/[id]/remediations
@@ -24,8 +25,8 @@ export async function GET(
     const url = new URL(req.url);
     const serverId = url.searchParams.get("server_id");
     const status = url.searchParams.get("status");
-    const limit = Math.min(parseInt(url.searchParams.get("limit") || "50"), 200);
-    const offset = parseInt(url.searchParams.get("offset") || "0");
+    const limit = parsePaginationParam(url.searchParams.get("limit"), 50, { min: 1, max: 200 });
+    const offset = parsePaginationParam(url.searchParams.get("offset"), 0);
 
     let query = admin.from("remediation_actions").select("*", { count: "exact" })
       .eq("organization_id", orgId)
diff --git a/apps/web/src/app/api/orgs/[id]/servers/[server_id]/detections/route.ts b/apps/web/src/app/api/orgs/[id]/servers/[server_id]/detections/route.ts
index dd950df..ca3ae6c 100644
--- a/apps/web/src/app/api/orgs/[id]/servers/[server_id]/detections/route.ts
+++ b/apps/web/src/app/api/orgs/[id]/servers/[server_id]/detections/route.ts
@@ -1,4 +1,5 @@
 import { NextRequest, NextResponse } from "next/server";
+import { parsePaginationParam } from "@/lib/pagination";
 import { getSupabaseAdmin } from "@/lib/supabase";
 
 // GET /api/orgs/[id]/servers/[server_id]/detections — Server-scoped detections
@@ -24,8 +25,8 @@ export async function GET(
     const url = new URL(req.url);
     const severity = url.searchParams.get("severity");
     const status = url.searchParams.get("status");
-    const limit = Math.min(parseInt(url.searchParams.get("limit") || "50"), 200);
-    const offset = parseInt(url.searchParams.get("offset") || "0");
+    const limit = parsePaginationParam(url.searchParams.get("limit"), 50, { min: 1, max: 200 });
+    const offset = parsePaginationParam(url.searchParams.get("offset"), 0);
 
     let query = admin.from("detections").select("*", { count: "exact" })
       .eq("organization_id", orgId)
diff --git a/apps/web/src/lib/__tests__/pagination.test.ts b/apps/web/src/lib/__tests__/pagination.test.ts
new file mode 100644
index 0000000..8a44332
--- /dev/null
+++ b/apps/web/src/lib/__tests__/pagination.test.ts
@@ -0,0 +1,17 @@
+import { describe, expect, it } from "vitest";
+import { parsePaginationParam } from "@/lib/pagination";
+
+describe("parsePaginationParam", () => {
+  it("returns the default for missing, malformed, or fractional values", () => {
+    expect(parsePaginationParam(null, 50, { min: 1, max: 200 })).toBe(50);
+    expect(parsePaginationParam("abc", 50, { min: 1, max: 200 })).toBe(50);
+    expect(parsePaginationParam("10.5", 50, { min: 1, max: 200 })).toBe(50);
+  });
+
+  it("clamps valid integers to the configured range", () => {
+    expect(parsePaginationParam("-5", 0)).toBe(0);
+    expect(parsePaginationParam("0", 50, { min: 1, max: 200 })).toBe(1);
+    expect(parsePaginationParam("500", 50, { min: 1, max: 200 })).toBe(200);
+  });
+});
+
diff --git a/apps/web/src/lib/pagination.ts b/apps/web/src/lib/pagination.ts
new file mode 100644
index 0000000..58c760b
--- /dev/null
+++ b/apps/web/src/lib/pagination.ts
@@ -0,0 +1,19 @@
+export function parsePaginationParam(
+  value: string | null,
+  defaultValue: number,
+  options: { min?: number; max?: number } = {},
+) {
+  if (value === null || value.trim() === "") {
+    return defaultValue;
+  }
+
+  const parsed = Number(value);
+  const min = options.min ?? 0;
+  const max = options.max ?? Number.MAX_SAFE_INTEGER;
+
+  if (!Number.isInteger(parsed)) {
+    return defaultValue;
+  }
+
+  return Math.min(Math.max(parsed, min), max);
+}