CVE-2026-16349
Critical · 9.8CVSS
9.8
EPSS
0.3%
Published
Jul 21, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-119331 Ladybird is a truly independent web browser. CWE-346
- CVE-2026-7005 WIT SynApps Runtime through 1.4.11 contains a browser-mediated cross-origin request… CWE-346
- CVE-2026-119416 CakePHP through 5.4.3 contains an improper cookie domain validation vulnerability in the… CWE-346
- CVE-2026-119285 Fiber is an Express inspired web framework written in Go. CWE-346
- CVE-2026-61546 AnkiMCP is an Anki addon that implements an MCP server, enabling AI assistants to… CWE-346
- CVE-2026-118657 Echo is a Go web framework. CWE-346
- CVE-2026-118651 Echo is a Go web framework. CWE-346
- CVE-2026-115413 Missing token audience validation in the OAuth authentication mode of AWS API MCP Server… CWE-346