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CVE-2026-113401

Fixed in a distro release EPSS <1%CVSS 6.5

Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.

Published 2026-10-20 · CVE record · OSV

Products: Mozilla Firefox, Mozilla Thunderbird

Distro releases

ReleasePackageFixed in
Ubuntu 18.04 LTSmozjs38no fix
Ubuntu 18.04 LTSmozjs52no fix
Ubuntu 20.04 LTSmozjs52no fix
Ubuntu 20.04 LTSmozjs68no fix
Ubuntu 22.04 LTSmozjs102no fix
Ubuntu 22.04 LTSmozjs78no fix
Ubuntu 22.04 LTSmozjs91no fix
Ubuntu 22.04 LTSthunderbirdno fix
Ubuntu 24.04 LTSmozjs102no fix
Ubuntu 24.04 LTSmozjs115no fix
openSUSE TumbleweedMozillaFirefox158.0.1-1.1