Vulnerability/
UBUNTU-CVE-2026-117953

UBUNTU-CVE-2026-117953: Use After Free

Published Oct 27, 2026

Updated

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Affected Software

10 affected components

ubuntu/mozjs52*

ubuntu/mozjs38*

ubuntu/mozjs68*

ubuntu/mozjs52*

ubuntu/mozjs102*

ubuntu/mozjs78*

ubuntu/mozjs91*

ubuntu/thunderbird*

ubuntu/mozjs102*

ubuntu/mozjs115*

Frequently Asked Questions

Which upstream application versions include the fix?

The issue was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Can I determine from this information whether a specific Ubuntu mozjs package is fixed?

No. The provided data lists Ubuntu mozjs38, mozjs52, mozjs68, mozjs78, mozjs91, mozjs102, and mozjs115 as relevant software, but does not provide fixed Ubuntu package versions.

Company

Resources

Contact

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