Google Chrome up to 149.0.7827.103 on Linux File sandbox

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$5k-$25k1.68

Summaryinfo

A vulnerability identified as critical has been detected in Google Chrome on Linux. Affected by this vulnerability is an unknown functionality of the component File Handler. Performing a manipulation results in sandbox. This vulnerability is identified as CVE-2026-12034. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Chrome on Linux. It has been classified as critical. This affects some unknown functionality of the component File Handler. The manipulation with an unknown input leads to a sandbox vulnerability. CWE is classifying the issue as CWE-265. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Insufficient validation of untrusted input in Linux Toolkit Theming in Google Chrome on Linux prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)

It is possible to read the advisory at chromereleases.googleblog.com. This vulnerability is uniquely identified as CVE-2026-12034 since 06/11/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for 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 06/12/2026). The attack technique deployed by this issue is T1611 according to MITRE ATT&CK.

Upgrading to version 149.0.7827.115 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality 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: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 8.3
ADP CISA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Sandbox
CWE: CWE-265 / CWE-264
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Chrome 149.0.7827.115

Timelineinfo

06/11/2026 CVE reserved
06/12/2026 +1 days Advisory disclosed
06/12/2026 +0 days VulDB entry created
06/12/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 519258
Status: Confirmed

CVE: CVE-2026-12034 (🔒)
GCVE (CVE): GCVE-0-2026-12034
GCVE (VulDB): GCVE-100-370491

Entryinfo

Created: 06/12/2026 06:03
Changes: 06/12/2026 06:03 (68)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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