9.8
Critical
CVE-2026-16349 Same-origin policy bypass in the DOM: Navigation component
Description
Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox 153 | earliest → < 153 | 153 |
| Firefox 140.13 | earliest → < 140.13 | 140.13 |
| Firefox 115.38 | earliest → < 115.38 | 115.38 |
| Thunderbird 153 | earliest → < 153 | 153 |
| Thunderbird 140.13 | earliest → < 140.13 | 140.13 |
References
- bugzilla.mozilla.org bugzilla.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
- www.mozilla.org www.mozilla.org
Timeline
- Published
- Last modified
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