UBUNTU-CVE-2026-117990: Medium severity ubuntu/mozjs52 vulnerability

Published Oct 27, 2026
·
Updated

Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender 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*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Firefox to a version that resolves this vulnerability.

    Fixed in 159
  2. Upgrade

    Upgrade Firefox ESR to a version that resolves this vulnerability.

    Fixed in 153.6
  3. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 159
  4. Upgrade

    Upgrade Thunderbird to a version that resolves this vulnerability.

    Fixed in 153.6

Event History

Oct 27, 2026
CVE Published
via OSV·02:16 PM
Data Sourced
via OSV·02:16 PM
DescriptionSeverityAffected Software

Company

Resources

Contact

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