Description
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
Published: 2026-04-08
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Sensitive Information Disclosure
Action: Apply Patch
AI Analysis

Impact

Google Chrome prior to 147.0.7727.55 contains a heap buffer overflow in the WebML component, classified as CWE‑122. A crafted HTML page can trigger the overflow, allowing a remote attacker to read process memory and potentially exfiltrate sensitive data. The vulnerability does not grant arbitrary code execution, but it does break confidentiality by leaking memory contents that may include credentials, secrets, or other confidential information.

Affected Systems

All desktop installations of Google Chrome running a version earlier than 147.0.7727.55 are vulnerable. The issue affects the Chrome browser shipped for Windows, macOS, and Linux platforms.

Risk and Exploitability

Chromium rates the issue as high severity. EPSS data is not available, and the vulnerability is not listed in the CISA KEV catalog. The likely attack vector is a maliciously crafted web page that the user opens, implying that exploitation requires user interaction with a malicious site but can occur without special privileges.

Generated by OpenCVE AI on April 8, 2026 at 22:48 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Google Chrome to version 147.0.7727.55 or later

Generated by OpenCVE AI on April 8, 2026 at 22:48 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6205-1 chromium security update
History

Fri, 10 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}

Fri, 10 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overwrite in WebML Enables Sensitive Data Leak in Google Chrome chromium-browser: Heap buffer overflow in WebML
Weaknesses CWE-787
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

threat_severity

Important

Thu, 09 Apr 2026 08:30:00 +0000

Type Values Removed Values Added
Title Heap Buffer Overwrite in WebML Enables Sensitive Data Leak in Google Chrome
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Wed, 08 Apr 2026 21:30:00 +0000

Type Values Removed Values Added
Description Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-122
References

Subscriptions

Google Chrome
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-04-10T18:40:08.229Z

Reserved: 2026-04-08T19:34:34.227Z

Link: CVE-2026-5869

cve-icon Vulnrichment

Updated: 2026-04-10T18:40:04.497Z

cve-icon NVD

Status : Received

Published: 2026-04-08T22:16:26.470

Modified: 2026-04-10T19:16:27.910

Link: CVE-2026-5869

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-07T00:00:00Z

Links: CVE-2026-5869 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-09T08:26:57Z

Weaknesses