Google Chrome up to 148.0.7778.168 ServiceWorker cross-domain policy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$5k-$25k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Google Chrome. Impacted is an unknown function of the component ServiceWorker. The manipulation leads to cross-domain policy. This vulnerability is traded as CVE-2026-9116. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome and classified as problematic. This issue affects some unknown functionality of the component ServiceWorker. The manipulation with an unknown input leads to a cross-domain policy vulnerability. Using CWE to declare the problem leads to CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. Impacted is integrity. The summary by CVE is:

Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

It is possible to read the advisory at chromereleases.googleblog.com. The identification of this vulnerability is CVE-2026-9116 since 05/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 07/21/2026).

The vulnerability scanner Nessus provides a plugin with the ID 316027 (Linux Distros Unpatched Vulnerability : CVE-2026-9116), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 148.0.7778.179 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (316027) and CERT Bund (WID-SEC-2026-1623). Be aware that VulDB is the high quality source for vulnerability data.

Affected

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

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 4.3
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
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: 316027
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-9116

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 148.0.7778.179

Timelineinfo

05/20/2026 Advisory disclosed
05/20/2026 +0 days CVE reserved
05/20/2026 +0 days VulDB entry created
07/21/2026 +62 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CNA: Chrome
CVE: CVE-2026-9116 (🔒)

GCVE (CVE): GCVE-0-2026-9116
GCVE (VulDB): GCVE-100-364919
CERT Bund: WID-SEC-2026-1623 - Google Chrome und Microsoft Edge: Mehrere Schwachstellen

Entryinfo

Created: 05/20/2026 21:59
Updated: 07/21/2026 14:12
Changes: 05/20/2026 21:59 (56), 05/21/2026 18:46 (7), 05/22/2026 04:43 (2), 05/24/2026 00:26 (10), 05/26/2026 17:45 (2), 07/21/2026 14:12 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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