What is CVE-2026-91708?

CVE-2026-91708 is a low-severity vulnerability in Google Chrome, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 3.1/10. Published 2026-09-15.

How severe is CVE-2026-91708?

Low severity. CVSS v3 base score is 3.1 out of 10.

Vulnerability in Google Chrome

CVE-2026-91708

Race condition in Network in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Google Chrome

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

chrome-cve-admin@google.com
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2026-91708?: CVE-2026-91708 is a low-severity vulnerability in Google Chrome, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 3.1/10. Published 2026-09-15.
How severe is CVE-2026-91708?: Low severity. CVSS v3 base score is 3.1 out of 10.