CVE-2026-118315
Description
An improper input validation flaw was found in the SVG component of the Chromium browser.
Upstream bug(s):
Statement
Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Mitigation
--- CME Mitigation Guidance (2026-11-03) ---
Disclaimer: The following mitigation solutions are provided as a courtesy, pending the application of an official patch. This content was generated utilizing AI tools in conjunction with data from https://cmetaxonomy.org. Customers are advised to independently evaluate and test these temporary mitigations within their own infrastructure.
The highest-value action is to enforce strict input validation on SVG elements within the Chromium renderer engine: upgrade to Google Chrome 156.0.8078.73+ (or the fixed Chromium builds), which validates SVG element input properly during parsing and rendering to prevent code execution within the renderer sandbox, closing crafted HTML page containing malicious SVG markup. Until patched, this is a concern on Chromium and Google Chrome browser deployments across all desktop platforms, so restrict user navigation to untrusted web destinations and prevent opening untrusted HTML documents. As a compensating measure, enable Address Space Layout Randomization on Chromium renderer processes to complicate memory corruption exploitation and enforce Non-Executable memory page permissions on renderer data segments to prevent payload execution. These controls limit blast radius and contain exploitation, but they do not fix the underlying improper input validation defect — apply the upstream patch to fully remediate.
Highest-impact CME: CME-101 ASLR (Address Space Layout Randomization) (medium)
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory)
An attacker could provide unexpected values and cause a program crash or arbitrary control of resource allocation, leading to excessive consumption of resources such as memory and CPU.
Confidentiality
Technical Impact: Read Memory; Read Files or Directories
An attacker could read confidential data if they are able to control resource references.
Integrity,Confidentiality,Availability
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
An attacker could use malicious input to modify data or possibly alter control flow in unexpected ways, including arbitrary command execution.
Frequently Asked Questions
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