JIT miscompilation in the JavaScript Engine: JIT component
Summary
| CVE | CVE-2026-109722 |
|---|---|
| State | PUBLISHED |
| Assigner | mozilla |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-13 13:17:22 UTC |
| Updated | 2026-10-13 19:18:35 UTC |
| Description | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5. |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Mozilla | Firefox | unaffected 115.43 115.* rpm | Not specified |
| CNA | Mozilla | Firefox | unaffected 153.5 153.* rpm | Not specified |
| CNA | Mozilla | Firefox | unaffected 158 * rpm | Not specified |
| CNA | Mozilla | Thunderbird | unaffected 153.5 153.* rpm | Not specified |
| CNA | Mozilla | Thunderbird | unaffected 158 * rpm | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.mozilla.org/security/advisories/mfsa2026-110 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-106 | [email protected] | www.mozilla.org | |
| bugzilla.mozilla.org/show_bug.cgi | [email protected] | bugzilla.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-107 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-109 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-108 | [email protected] | www.mozilla.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Amy Burnett of OpenAI (en)
There are currently no legacy QID mappings associated with this CVE.