CVE-2026-74963
Medium · 5.4CVSS
5.4
EPSS
0.2%
Published
Aug 18, 2026
CISA due date
—
The record
Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-114125 Storybook is a frontend workshop for building user interface components and pages in… CWE-346
- CVE-2026-107230 The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP… CWE-346
- CVE-2026-94485 Next.js is a React framework for building full-stack web applications. CWE-346
- CVE-2026-94486 Next.js is a React framework for building full-stack web applications. CWE-346
- CVE-2026-77119 A validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity… CWE-346
- CVE-2026-87563 Origin validation error in Paint in Google Chrome prior to 153.0.8010.36 allowed a remote… CWE-346
- CVE-2026-85152 undici 8.10.0 omits the destination origin from the cache and request-deduplication keys… CWE-346
- CVE-2026-84482 WWBN AVideo through commit 9c39d8c8 contains a cross-site request forgery vulnerability… CWE-346