CVE-2026-126874
Description
A type confusion flaw was found in the V8 component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=576439987 https://code.google.com/p/chromium/issues/detail?id=126874
Statement
Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Mitigation
Operational controls to reduce exposure:
1. Exercise caution and avoid visiting untrusted websites or opening unverified links in Chromium.
2. Ensure browser sandboxing remains active; never launch Chromium with flags that disable isolation (such as `--no-sandbox`).
3. If interactive web browsing is not required on the system, remove the Chromium package:
dnf remove chromium
Caveats: Avoiding untrusted sites reduces risk but does not protect against compromised legitimate sites (drive-by compromise). Removing the package will eliminate the ability to use the Chromium browser application on the host.
Understanding the Weakness (CWE)
Other
Technical Impact: Varies by Context
When the product accesses the resource using an incompatible type, this could trigger logical errors because the resource does not have expected properties.
Availability,Integrity,Confidentiality
Technical Impact: Read Memory; Modify Memory; Execute Unauthorized Code or Commands; DoS: Crash, Exit, or Restart
If a memory buffer is accessed using an incompatible type, and the allocated buffer is smaller than the type that the code is attempting to access, then an attacker could read or write memory outside the bounds of the buffer, leading to a crash or possibly code execution.
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