CVE-2026-8947
Use-after-free in the DOM: Bindings (WebIDL) component.
Published May 19, 2026 · updated Oct 14, 2026 · mozilla firefox
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Timeline
Detection, updates, and resolution for this record.
May 19, 2026 · NIST NVD
Detected
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Oct 14, 2026 · NIST NVD
Updated
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
Affected
- cpe mozilla/firefoxversion unspecified
- cpe mozilla/thunderbirdversion unspecified
Sources
- CVE.orgCVE-2026-8947
Official CVE identifier
cve.org - NIST NVDCVE-2026-8947
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
nvd.nist.gov