Exploited vulnerability · CISA KEV

Is CVE-2026-5281 exploited? Yes: in CISA KEV since 1 Apr 2026

Gociux · Google Dawn · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-5281, Google Dawn Use-After-Free Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 1 Apr 2026, the day it was published. It affects Google Dawn. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What it is

Google Dawn contains an use-after-free vulnerability that could allow a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page. This vulnerability could affect multiple Chromium-based products including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

What to do

1. Check whether you run it. Look for Dawn in your asset inventory, including appliances and cloud images. Stack check lists every exploited Google CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 1 Apr 2026.
4. Get told next time. Email alerts when CISA adds a CVE for Google.

References

• nvd.nist.gov/vuln/detail/CVE-2026-5281

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in April 2026 · Google scorecard · act-now radar.