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VULNERABILITIES

CVE-2026-8090 Details

Description

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:19160 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:20566 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:20574 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:21381 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:22325 redhat-SADP

see all 30 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After FreeCISA-ADP
CWE-825Expired Pointer Dereferenceredhat-SADP

Affected Products

ProductVersions
mozilla firefox
< 115.35.2
< 150.0.2
>= 128.0, < 140.10.2

CPE

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.
mozilla thunderbird
< 140.10.2
< 150.0.2

CPE

  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-8090
NVD Published Date:
May 7, 2026
NVD Last Modified:
Jul 28, 2026
Source:
[email protected]