CVE-2026-9959

3.1 LOW 0.1% exploit odds No fix listed Other Browser & mail

What it is

Race in WebRTC in Google Chrome on Windows prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
Exploit odds: 0.1% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-05-28 23:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-07-21 11:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-05-28 23:16 UTC
Last modified: 2026-07-21 11:10 UTC
Exploit probability: 0.1% · EPSS, next 30 days
Weakness: CWE-362 · Race condition
Record status: Analyzed

Affected

Google Chrome < 148.0.7778.216

Attack profile CVSS 3.1 · 3.1

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

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References

NVD record · CVE.org record