9.1
Critical
CVE-2026-92038 Mitigation bypass in the Remote Settings Client component
Description
Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 156 | earliest → < 156 | 156 |
| Firefox 153.3 | earliest → < 153.3 | 153.3 |
| Thunderbird 156 | earliest → < 156 | 156 |
| Thunderbird 153.3 | earliest → < 153.3 | 153.3 |