CVE-2026-8018: Insufficient policy enforcement in DevTools in Google Chrome prior to 148.0.7778.96 allowed a remote attacker

Q: How do I fix CVE-2026-8018?

chrome: upgrade to 148.0.7778.96. Exact commands for each OS are on this page.

Q: Is CVE-2026-8018 being exploited?

CVE-2026-8018 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-8018 affect?

CVE-2026-8018 affects chrome. Severity is high (CVSS 8.1). Insufficient policy enforcement in DevTools in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. (Chromium security severity: Low)

Q: How urgent is CVE-2026-8018?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Routine

HIGH 8.1REMOTEUPGRADE

CVE-2026-8018 is a high-severity flaw (CVSS 8.1) affecting chrome. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insufficient policy enforcement in DevTools in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. (Chromium security severity: Low)

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-693
Published	2026-05-06
Last modified	2026-10-26

Publisher (CNA): Chrome · Vendor: google

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-06 19:16 UTCPublished CVE record published
2026-10-26 00:10 UTCUpdated Record last modified

google chrome UPGRADE

Affected: < 148.0.7778.96

Fixed in: 148.0.7778.96

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chrome || rpm -q chrome || chrome --version

2. UPGRADE to 148.0.7778.96 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chrome

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chrome

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-8018?

chrome: upgrade to 148.0.7778.96. Exact commands for each OS are on this page.

Is CVE-2026-8018 being exploited?

CVE-2026-8018 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-8018 affect?

CVE-2026-8018 affects chrome. Severity is high (CVSS 8.1). Insufficient policy enforcement in DevTools in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to potentially perform a sandbox escape via malicious network traffic. (Chromium security severity: Low)

How urgent is CVE-2026-8018?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Software pages

Google Chrome vulnerabilities · Chromium vulnerabilities

Related CVEs

CVE-2026-6299 HIGH 8.8 UPGRADE Use after free in Prerender in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbi
CVE-2026-6300 HIGH 8.8 UPGRADE Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary
CVE-2026-6307 HIGH 8.8 UPGRADE Type Confusion in Turbofan in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbit
CVE-2026-8016 HIGH 8.8 UPGRADE Use after free in WebRTC in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrar
CVE-2026-7927 HIGH 8.8 UPGRADE Type Confusion in Runtime in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitra

References

← Back to latest CVEs