CVE-2026-124883

Description

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.

Affected Platforms

Weakness Type

Unknown

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2081991
• https://www.mozilla.org/security/advisories/mfsa2026-125/
• https://www.mozilla.org/security/advisories/mfsa2026-127/