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High

Use-after-free in Dawn in Google Chrome on Mac

IdentifiersCVE-2026-11687CWE-416· Use After Free

CVE-2026-11687 is a high-severity use-after-free vulnerability in the Dawn component of Google Chrome affecting Mac systems prior to version 149.0.7827.103. According to the provided advisory text, a remote attacker can trigger the flaw by supplying a crafted HTML page, leading to a use-after-free condition and potential heap corruption in the browser process. The specific vulnerable function is not provided in the available content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation may allow a remote attacker to corrupt heap memory in Chrome on affected Mac systems. The provided CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) indicates potential high impact to confidentiality, integrity, and availability, consistent with browser compromise following successful exploitation.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by limiting use of untrusted or attacker-controlled web content, restricting browsing to trusted sites, and applying standard browser hardening and exploit-mitigation controls on affected Mac endpoints until the update can be deployed. Specific vendor-provided mitigations beyond upgrading were not provided in the available content.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on Mac to version 149.0.7827.103 or later, which contains the fix for CVE-2026-11687.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleChromeapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

6 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity4

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-11687
NVD
nvd.nist.gov/vuln/detail/CVE-2026-11687
MITRE CWE · CWE-416
Use After Free
chromereleases.googleblog.com
chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html
issues.chromium.org
issues.chromium.org/issues/517303276