This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-92022 →

DEBIAN-CVE-2026-92022

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153...

Original description

The description as published by the source.

Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 firefox-esr

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.16.0esr-1~deb12u1"}]}]

Debian:13 firefox-esr

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.16.0esr-1~deb13u1"}]}]

Debian:14 firefox-esr

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.16.0esr-1"}]}]

Debian:12 thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:140.16.0esr-1~deb12u1"}]}]

Debian:13 thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:140.16.0esr-1~deb13u1"}]}]

Debian:14 thunderbird

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:153.3.0esr-1"}]}]

References

advisory security-tracker.debian.org