CVE-2026-126841
Description
A flaw was found in chromium-browser. An out-of-bounds read vulnerability in the Skia graphics engine allows a remote attacker who has compromised the browser renderer to access memory outside the restricted sandbox environment. By tricking a user into viewing a crafted HTML page, an attacker can exploit this flaw to cause unauthorized information disclosure.
Statement
This vulnerability is rated as Important severity rather than Critical because exploitation requires prior compromise of the renderer process as well as user interaction to navigate to a malicious web page. In Red Hat Enterprise Linux desktop environments where the browser is utilized to access external web content, an adversary could leverage this memory boundary violation in the graphics subsystem to exfiltrate sensitive data across the sandbox isolation barrier. The impact is primarily restricted to unauthorized information disclosure from outside the sandbox rather than immediate arbitrary code execution.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
An attacker could get secret values such as cryptographic keys, PII, memory addresses, or other information that could be used in additional attacks.
Confidentiality
Technical Impact: Bypass Protection Mechanism
Out-of-bounds memory could contain memory addresses or other information that can be used to bypass ASLR and other protection mechanisms in order to improve the reliability of exploiting a separate weakness for code execution.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
An attacker could cause a segmentation fault or crash by causing memory to be read outside of the bounds of the buffer. This is especially likely when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string.
Other
Technical Impact: Varies by Context
The read operation could produce other undefined or unexpected results.
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