CVE-2026-106336
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Heap Overflow in Google Chrome Paint Component

Publication date: 2026-10-06

Last updated on: 2026-10-06

Assigner: Chrome

Description
Observable discrepancy in Paint in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

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Meta Information

Published
2026-10-06
Last Modified
2026-10-06
Generated
2026-10-06
AI Q&A
2026-10-06
EPSS Evaluated
N/A
NVD
CVE-2026-106336
EUVD
EUVD-2026-93747

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Google Chrome 155.0.8059.39

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-203 The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

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Executive Summary

This vulnerability is a side-channel issue in Google Chrome's Paint component. It allows a remote attacker to observe timing or other observable differences in how Chrome renders content, which can be exploited to leak data from different origins (domains) than the one the attacker's page is on.

Impact Analysis

If you use Google Chrome versions prior to 155.0.8059.39, an attacker could potentially access sensitive data from other websites you visit while using Chrome. This could include personal information, login credentials, or other confidential data.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR's data protection principles or HIPAA's privacy rules if it involves protected health information. Organizations must ensure affected Chrome versions are updated to mitigate compliance risks.

Mitigation Strategies

Update Google Chrome to version 155.0.8059.39 or later to address the vulnerability.

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