Use-after-free in the DOM: Core & HTML component

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-124883 · CVE overview and exploitation status

cve-program · CVE-2026-124883

• 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/
• https://www.mozilla.org/security/advisories/mfsa2026-128/
• https://www.mozilla.org/security/advisories/mfsa2026-129/

• Use-after-free in the DOM: Core & HTML component · Newly collected advisory · 10 Nov 2026
• Use-after-free in the DOM: Core & HTML component · Affected-version evidence changed · 10 Nov 2026
• Use-after-free in the DOM: Core & HTML component · Affected-version evidence changed · 10 Nov 2026