Google Chrome up to 146.0.7680.165 WebCodecs 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 was found in Google Chrome and classified as critical. Affected by this vulnerability is an unknown functionality of the component WebCodecs. Such manipulation leads to use after free. This vulnerability is documented as CVE-2026-5280. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome and classified as critical. Affected by this issue is an unknown code of the component WebCodecs. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Use after free in WebCodecs in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

The advisory is shared for download at chromereleases.googleblog.com. This vulnerability is handled as CVE-2026-5280 since 03/31/2026. 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 04/15/2026).

The vulnerability scanner Nessus provides a plugin with the ID 304866 (Debian dsa-6192 : chromium - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 146.0.7680.178 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (304866) and CERT Bund (WID-SEC-2026-0937). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Fedora Linux
  • IGEL OS
  • SUSE openSUSE
  • Google Chrome
  • Microsoft Edge

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: 304866
Nessus Name: Debian dsa-6192 : chromium - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 146.0.7680.178

Timelineinfo

03/31/2026 CVE reserved
04/01/2026 +1 days Advisory disclosed
04/01/2026 +0 days VulDB entry created
04/15/2026 +14 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 491515
Status: Confirmed

CVE: CVE-2026-5280 (🔒)
GCVE (CVE): GCVE-0-2026-5280
GCVE (VulDB): GCVE-100-354596
CERT Bund: WID-SEC-2026-0937 - Google Chrome und Microsoft Edge: Mehrere Schwachstellen

Entryinfo

Created: 04/01/2026 07:55
Updated: 04/15/2026 22:04
Changes: 04/01/2026 07:55 (58), 04/05/2026 21:39 (2), 04/15/2026 22:04 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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