CVEvulnerability

CVE-2026-2790

9.8 CRITICAL Published 2026-02-24 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2026-02-24
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-346

Description

Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Affected configurations

• mozilla firefox (< 140.8.0) • mozilla firefox (< 148.0) • mozilla thunderbird (< 140.8.0) • mozilla thunderbird (< 148.0)

Related

Weakness · CWE (1)

  • CWE-346 Origin Validation Error weakness

References