CVE-2026-117998 vulnerability in Mozilla Products
Published on October 27, 2026
Mitigation bypass in the DOM: Push Subscriptions component
Vulnerability Analysis
CVE-2026-117998 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 be very high.
Weakness Type
Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This weakness covers three distinct situations. A "missing" protection mechanism occurs when the application does not define any mechanism against a certain class of attack. An "insufficient" protection mechanism might provide some defenses - for example, against the most common attacks - but it does not protect against everything that is intended. Finally, an "ignored" mechanism occurs when a mechanism is available and in active use within the product, but the developer has not applied it in some code path.
Products Associated with CVE-2026-117998
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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.