Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Use after free in InterestGroups in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Remote code execution in Google Chrome versions prior to 149.0.7827.103 stems from a use-after-free flaw in the InterestGroups component, enabling a remote attacker to execute arbitrary code within the renderer sandbox via a crafted HTML page. The vulnerability carries a CVSS 8.8 (High) score and is rated High severity by Chromium, but no public exploit identified at time of analysis and SSVC indicates exploitation status of none. Attack requires user interaction (visiting a malicious page) but no authentication.
Technical ContextAI
The vulnerability resides in Chrome's InterestGroups implementation, which is part of the Protected Audience API (formerly FLEDGE) - a Privacy Sandbox component used for on-device ad auctions that replaces third-party cookie-based interest targeting. CWE-416 (Use After Free) describes a memory safety flaw where freed heap memory continues to be referenced; an attacker who can influence allocator state can cause the dangling pointer to reference attacker-controlled data, leading to control-flow hijack. The bug is reachable from web content because InterestGroups exposes JavaScript-accessible interfaces (navigator.joinAdInterestGroup, runAdAuction) that drive the underlying C++ object lifetimes in the browser/renderer process.
RemediationAI
Vendor-released patch: Google Chrome 149.0.7827.103 - update via Chrome's auto-update mechanism or manually trigger an update through chrome://settings/help and restart the browser, as documented in the Chrome Releases advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html. Enterprise administrators using managed deployments should ensure the auto-update policy is not disabled and push the build through their software distribution mechanism (Chrome Browser Cloud Management, SCCM, Jamf, etc.). As a compensating control until patching completes, the Protected Audience / InterestGroups surface can be disabled by setting the PrivacySandboxAdMeasurementEnabled and PrivacySandboxAdTopicsEnabled enterprise policies to false and disabling chrome://flags/#privacy-sandbox-ads-apis, which removes the vulnerable code path from JavaScript reachability at the cost of breaking sites that rely on Privacy Sandbox ad auctions; users of Chromium-derivative browsers should monitor their vendor's release notes for a rebase incorporating the fix.
Same weakness CWE-416 – Use After Free
View allSame technique Memory Corruption
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
Share
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-35273
GHSA-x6q3-gw4h-79f9