CVE-2026-55945: Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
Other sources
Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.4078.48
Event History
Frequently Asked Questions
What is the severity of CVE-2026-55945?
CVE-2026-55945 has a medium severity rating of 4.2.
What does CVE-2026-55945 involve?
CVE-2026-55945 involves a race condition in Microsoft Edge (Chromium-based) that allows authorized attackers to disclose information locally.
How do I fix CVE-2026-55945?
To fix CVE-2026-55945, ensure your Microsoft Edge (Chromium-based) browser is updated to the latest version.
Who is affected by CVE-2026-55945?
Users of Microsoft Edge (Chromium-based) are affected by CVE-2026-55945 if they are using an outdated version.
What type of vulnerability is CVE-2026-55945 classified as?
CVE-2026-55945 is classified as a race condition vulnerability.