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High

Sandbox escape in Google Chrome DevTools policy enforcement

IdentifiersCVE-2026-8018CWE-693· Protection Mechanism Failure

CVE-2026-8018 is an insufficient policy enforcement vulnerability in DevTools in Google Chrome. It affects Google Chrome versions prior to 148.0.7778.96. According to the provided content, a remote attacker may be able to leverage malicious network traffic to potentially achieve a sandbox escape. No additional technical detail about the specific vulnerable function, code path, or enforcement boundary bypassed within DevTools is provided in the available content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation could allow a remote attacker to escape Chrome's sandbox, undermining a core browser security boundary. Based on the provided CVSS vector (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H), the potential impact includes compromise of confidentiality, integrity, and availability on the affected system or browser process context after escaping the sandbox. The provided content does not specify post-escape privileges or follow-on constraints.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting use of affected Chrome versions and restricting access to untrusted or attacker-controlled network content where feasible, since exploitation is described as occurring via malicious network traffic. Because the available content does not provide a vendor-endorsed mitigation or feature-specific workaround, updating to a fixed version remains the primary mitigation.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 148.0.7778.96 or later, as versions prior to 148.0.7778.96 are affected. The provided content does not include any vendor-specified workaround beyond updating to a fixed release.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

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VendorProductType
GoogleChromeapplication

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What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

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Detection signatures

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Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity7

Community discussion across Reddit, Mastodon, and other social sources.