Description
Information disclosure in the Networking: JAR component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Published: 2026-09-29
Score: 4.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 29 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 29 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Description Information disclosure in the Networking: JAR component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
Title Information disclosure in the Networking: JAR component
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-09-29T15:09:46.478Z

Reserved: 2026-09-26T19:15:22.826Z

Link: CVE-2026-100766

cve-icon Vulnrichment

Updated: 2026-09-29T15:09:42.992Z

cve-icon NVD

Status : Received

Published: 2026-09-29T13:17:40.837

Modified: 2026-09-29T16:17:05.343

Link: CVE-2026-100766

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T17:00:18Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor