CVE-2026-8521
HIGHCVSS 7.5/10EPSS 0.16%
Last modified
CVE-2026-8521 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical). EPSS estimates a 0.16% chance of exploitation in the next 30 days.
Description
Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
Metrics
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 148.0.7778.168 |
References
- https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.htmlProduct, Vendor Advisory
- https://issues.chromium.org/issues/504106200Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-8521?
Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
How severe is CVE-2026-8521?
CVE-2026-8521 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-8521?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-8521?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST