CVE-2025-12909

Insufficient policy enforcement in Devtools in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to leak cross-origin data via Devtools. (Chromium security severity: Low)

CVSS 3.1

5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

CWE

CWE-693

Published

2025-11-08

Modified

2026-10-07

Record from

the NVD, synced 2026-10-19

Affected

• google:chrome

References

• https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop.html
• https://issues.chromium.org/issues/361116749

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