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CVE-2026-5915 Google CVE debrief

CVE-2026-5915 is an out of bounds memory write vulnerability in Google Chrome prior to 147.0.7727.55. The issue is due to insufficient validation of untrusted input in WebML. A remote attacker can exploit this vulnerability via a crafted HTML page. This vulnerability has a CVSS score of 8.1 and is classified as HIGH severity. Users of Google Chrome prior to version 147.0.7727.55 should update to the latest version to mitigate this vulnerability. The vulnerability can be exploited via a crafted HTML page, which makes it a potential target for attackers.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-24
Advisory published
2026-04-08
Advisory updated
2026-07-24

Who should care

Users of Google Chrome prior to version 147.0.7727.55 should update to the latest version to mitigate this vulnerability. This includes administrators and users who rely on Google Chrome for browsing. The vulnerability can be exploited via a crafted HTML page, which makes it a potential target for attackers. Security teams should prioritize updating Google Chrome to prevent exploitation.

Technical summary

The vulnerability is caused by insufficient validation of untrusted input in WebML, allowing a remote attacker to perform an out of bounds memory write via a crafted HTML page. This vulnerability has a CVSS score of 8.1 and is classified as HIGH severity. The issue affects Google Chrome versions prior to 147.0.7727.55. Users should update to the latest version to prevent exploitation of this vulnerability.

Defensive priority

High priority should be given to updating Google Chrome to version 147.0.7727.55 or later to prevent exploitation of this vulnerability. Security teams should prioritize updating Google Chrome to prevent exploitation.

Recommended defensive actions

  • Update Google Chrome to version 147.0.7727.55 or later
  • Ensure that all users of Google Chrome are aware of the vulnerability and the need for an update
  • Monitor Google Chrome for any suspicious activity
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-04-08T22:16:31.460Z and was last modified on 2026-07-24T08:10:00.150Z. The NVD entry is currently Modified. This vulnerability affects Google Chrome versions prior to 147.0.7727.55. The issue is related to insufficient validation of untrusted input in WebML, which allows a remote attacker to perform an out of bounds memory write via a crafted HTML page. Users should verify their current version and update if necessary.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-04-08T22:16:31.460Z and has not been modified since then. The NVD entry is currently Modified.