Google Chromium CSS Use-After-Free Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-02-17
• EPSS: 55% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

Use after free in CSS in Google Chrome prior to 145.0.7632.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CISA: Google Chromium CSS contains a use-after-free vulnerability that could allow a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 10 Mar 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• chromereleases.googleblog.com/2026/02/stable-channel-update-for-desktop_13.htmlRelease Notes
• issues.chromium.org/issues/483569511Issue TrackingPermissions Required
• github.com/huseyinstif/CVE-2026-2441-PoC/blob/main/poc.htmlExploit
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource