5.4
Medium
CVE-2026-100822 Spoofing issue in the Networking: HTTP component
Description
Spoofing issue in the Networking: HTTP component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 153.4, and Firefox 157.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 157 | earliest → < 157 | 157 |
| Firefox 153.4 | earliest → < 153.4 | 153.4 |
| Thunderbird 157 | earliest → < 157 | 157 |
| Thunderbird 153.4 | earliest → < 153.4 | 153.4 |