Description
Use after free in Autofill in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Published: 2026-06-11
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A use‑after‑free condition (CWE‑416) in Chrome’s Autofill logic on macOS triggers a heap corruption when a crafted HTML page is loaded. The corrupted heap can overwrite control structures, potentially allowing an attacker to execute arbitrary code. The flaw also involves improper permission handling (CWE‑825), which could further weaken defenses.

Affected Systems

All users running Google Chrome on macOS versions prior to 149.0.7827.115 are impacted. The vulnerability resides only in the Chrome browser; other browsers and the operating system are not affected.

Risk and Exploitability

The CVSS score of 8.8 indicates high severity. EPSS is listed as <1%, implying a low likelihood of exploitation seen in the wild. No public exploit has been reported in the CISA KEV catalog. Exposing the flaw requires an attacker to serve a malicious web page that the victim visits, so patching remains a priority.

Generated by OpenCVE AI on June 22, 2026 at 14:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Google Chrome on macOS to version 149.0.7827.115 or newer.
  • Keep Chrome’s auto‑update feature enabled so that future patches are applied automatically.
  • If an update cannot be applied immediately, disable the Autofill feature via Chrome policies to reduce exposure until the vulnerability is fixed.

Generated by OpenCVE AI on June 22, 2026 at 14:51 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6344-1 chromium security update
History

Mon, 22 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: chromium-browser: Use after free  Autofill
Weaknesses CWE-825
References
Metrics threat_severity

None

 threat_severity

Important

Sat, 13 Jun 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos

Fri, 12 Jun 2026 02:45:00 +0000

Type Values Removed Values Added
Title Use-After-Free in Chrome Autofill Allows Heap Corruption on macOS

Fri, 12 Jun 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 11 Jun 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Thu, 11 Jun 2026 23:30:00 +0000

Type Values Removed Values Added
Title Use-After-Free in Chrome Autofill Allows Heap Corruption on macOS

Thu, 11 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
Description Use after free in Autofill in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-416
References

Subscriptions

Apple Macos
Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-12T03:55:50.776Z

Reserved: 2026-06-11T18:16:05.760Z

Link: CVE-2026-12020

cve-icon Vulnrichment

Updated: 2026-06-12T00:50:05.317Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-11T22:16:54.590

Modified: 2026-06-13T00:34:47.150

Link: CVE-2026-12020

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-11T20:48:09Z

Links: CVE-2026-12020 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-22T15:00:13Z

Weaknesses