Google Chrome up to 146.0.7680.178 WebML heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.0$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Google Chrome. Affected by this issue is some unknown functionality of the component WebML. Such manipulation leads to heap-based overflow. This vulnerability is documented as CVE-2026-5858. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chrome. Affected by this issue is some unknown functionality of the component WebML. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code via a crafted HTML page. (Chromium security severity: Critical)

The advisory is shared for download at chromereleases.googleblog.com. This vulnerability is handled as CVE-2026-5858 since 04/08/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/11/2026).

The vulnerability scanner Nessus provides a plugin with the ID 305979 (Microsoft Edge (Chromium) < 147.0.3912.60 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 147.0.7727.55 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (305979) and CERT Bund (WID-SEC-2026-1030). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Fedora Linux
  • Microsoft Edge
  • Google Chrome

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 305979
Nessus Name: Microsoft Edge (Chromium) < 147.0.3912.60 Multiple Vulnerabilities

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 147.0.7727.55

Timelineinfo

04/08/2026 CVE reserved
04/09/2026 +1 days Advisory disclosed
04/09/2026 +0 days VulDB entry created
04/11/2026 +2 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 493319
Status: Confirmed

CVE: CVE-2026-5858 (🔒)
GCVE (CVE): GCVE-0-2026-5858
GCVE (VulDB): GCVE-100-356456
CERT Bund: WID-SEC-2026-1030 - Google Chrome und Microsoft Edge: Mehrere Schwachstellen

Entryinfo

Created: 04/09/2026 02:36
Updated: 04/11/2026 11:15
Changes: 04/09/2026 02:36 (58), 04/09/2026 23:58 (7), 04/10/2026 13:44 (1), 04/11/2026 11:15 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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