CVE-2026-2790 PUBLISHED

Same-origin policy bypass in the Networking: JAR component

Assigner: mozilla
Reserved: 19.02.2026 Published: 24.02.2026 Updated: 24.02.2026

Same-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8.

Product Status

Vendor Mozilla
Product Firefox
Versions
  • affected from unspecified to 148 (excl.)
Vendor Mozilla
Product Firefox ESR
Versions
  • affected from unspecified to 140.8 (excl.)

Credits

  • Surya Dev Singh

References