What is GHSA-grwv-9fwx-5mmc?

GHSA-grwv-9fwx-5mmc is a security advisory published by GitHub Security Advisories with Medium severity. Insufficient policy enforcement in Canvas in Google Chrome prior to 150.0.7871.47 allowed a...

Which CVE IDs does GHSA-grwv-9fwx-5mmc cover?

GHSA-grwv-9fwx-5mmc covers the following CVE IDs: CVE-2026-13840. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-grwv-9fwx-5mmc?

GHSA-grwv-9fwx-5mmc has a CVSS v3 base score of 6.5, published by GitHub Security Advisories.

GHSA-grwv-9fwx-5mmcMediumCVSS 6.5

Insufficient policy enforcement in Canvas in Google Chrome prior to 150.0.7871.47 allowed a...

Vendor

GitHub Security Advisories

Published

July 1, 2026

Last Modified

July 1, 2026

🔗 CVE IDs covered (1)

CVE-2026-13840 →

📋 Description

Insufficient policy enforcement in Canvas in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-13840
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html
https://issues.chromium.org/issues/514609778
https://github.com/advisories/GHSA-grwv-9fwx-5mmc