CVE-2026-109751

MediumCVSS 4.3/10Last modified Oct 13, 2026

Description

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-200

Affected software

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 13, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-1097525.4Use-after-free in the DOM: Workers component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and ThunderbiCVE-2026-1097538.1Incorrect boundary conditions in the Layout component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, TCVE-2026-1097548.1Incorrect boundary conditions in the DOM: Editor component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158,CVE-2026-1097559.6Sandbox escape in the DOM: Content Processes component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.CVE-2026-1097568.8Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and CVE-2026-1097578.3Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, ThunderbirCVE-2026-1097589.3Perforce Helix Authentication Service (HAS) deployments that retain the shipped default SCIM bearer token are vulnerable to unauthorized accCVE-2026-1097598.1Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and ThundCVE-2026-109767.4Uninitialized Use in Dawn in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to obtain potentially sensitive information fromCVE-2026-1097608.1Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and ThCVE-2026-1097615.4Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.CVE-2026-1097628.8Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thu
CVE-2026-109751: Medium severity, CVSS 4.3 | Vulnix