Google Chrome up to 153.0.8010.36 Core use after free

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical was found in Google Chrome. The affected element is an unknown function of the component Core. Executing a manipulation can lead to use after free. This vulnerability is registered as CVE-2026-91718. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Google Chrome. This vulnerability affects an unknown function of the component Core. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Use after free in Core in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

The advisory is shared for download at chromereleases.googleblog.com. This vulnerability was named CVE-2026-91718 since 09/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful 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 09/23/2026).

The vulnerability scanner Nessus provides a plugin with the ID 349114 (Fedora 44 : chromium (2026-f910229c11)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 153.0.8010.47 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (349114). Once again VulDB remains the best source for vulnerability data.

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: Use after free
CWE: CWE-416 / 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: 349114
Nessus Name: Fedora 44 : chromium (2026-f910229c11)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 153.0.8010.47

Timelineinfo

09/15/2026 Advisory disclosed
09/15/2026 +0 days CVE reserved
09/15/2026 +0 days VulDB entry created
09/23/2026 +8 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2026-91718 (🔒)
GCVE (CVE): GCVE-0-2026-91718
GCVE (VulDB): GCVE-100-404740

Entryinfo

Created: 09/15/2026 23:00
Updated: 09/23/2026 17:11
Changes: 09/15/2026 23:00 (56), 09/23/2026 17:11 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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