CVE-2026-117890 vulnerability in Mozilla Products
Published on October 27, 2026
JIT miscompilation in the JavaScript Engine: JIT component
Vulnerability Analysis
CVE-2026-117890 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be low. considered to have a small impact on confidentiality and integrity and availability.
Weakness Type
What is an Object Type Confusion Vulnerability?
The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CVE-2026-117890 has been classified to as an Object Type Confusion vulnerability or weakness.
Products Associated with CVE-2026-117890
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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.