CVE-2026-3539: exploitation status and patch state

CVE-2026-3539 · CVSS 8.8 HIGH · EPSS <1% · patch available

Object lifecycle issue in DevTools in Google Chrome prior to 145.0.7632.159 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)

Is CVE-2026-3539 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at <1%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

• Release Notes

What PlainSec published about CVE-2026-3539

• Chromium Update Fixes 10 Flaws Causing Execution of Arbitrary Code and Denial of Service (2026-03-05)

Primary sources

• NVD record

What this record does not say

• No affected package data.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.