Mitigation bypass in the Remote Settings Client component
Summary
| CVE | CVE-2026-92019 |
|---|---|
| State | PUBLISHED |
| Assigner | mozilla |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-15 13:16:51 UTC |
| Updated | 2026-09-15 20:19:29 UTC |
| Description | Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16. |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Mozilla | Firefox | unaffected 115.41 115.* rpm | Not specified |
| CNA | Mozilla | Firefox | unaffected 140.16 140.* rpm | Not specified |
| CNA | Mozilla | Firefox | unaffected 153.3 153.* rpm | Not specified |
| CNA | Mozilla | Firefox | unaffected 156 * rpm | Not specified |
| CNA | Mozilla | Thunderbird | unaffected 140.16 140.* rpm | Not specified |
| CNA | Mozilla | Thunderbird | unaffected 156 * rpm | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| bugzilla.mozilla.org/show_bug.cgi | [email protected] | bugzilla.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-94 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-95 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-93 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-92 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-91 | [email protected] | www.mozilla.org | |
| www.mozilla.org/security/advisories/mfsa2026-90 | [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: Shu Takahashi (en)
There are currently no legacy QID mappings associated with this CVE.