CVE-2026-117928 vulnerability in Mozilla Products
Published on October 27, 2026
Same-origin policy bypass in the CSS Parsing and Computation component
Vulnerability Analysis
CVE-2026-117928 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
Origin Validation Error
The software does not properly verify that the source of data or communication is valid.
Products Associated with CVE-2026-117928
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Affected Versions
Mozilla Firefox:- Version 153.6, <= 153.* is unaffected.
- Version 159, <= * is unaffected.
- Version 153.6, <= 153.* is unaffected.
- Version 159, <= * is unaffected.