What’s Vulnerable › Vulnerabilities

CVE-2026-8094: Other issue in the WebRTC component

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-07 · updated 2026-10-26
• Weakness: CWE-94

Description

Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2.

Affected products

• Mozilla Firefox: before 140.10.2 — fixed in 140.10.2
• Mozilla Thunderbird: before 140.10.2 — fixed in 140.10.2

How to fix

Upgrade to a fixed version: Mozilla Firefox 140.10.2; Mozilla Thunderbird 140.10.2. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2035939
• https://www.mozilla.org/security/advisories/mfsa2026-41/
• https://www.mozilla.org/security/advisories/mfsa2026-44/
• https://access.redhat.com/errata/RHSA-2026:19160
• https://access.redhat.com/errata/RHSA-2026:20566
• https://access.redhat.com/errata/RHSA-2026:20574
• https://access.redhat.com/errata/RHSA-2026:21381
• https://access.redhat.com/errata/RHSA-2026:22325
• https://access.redhat.com/errata/RHSA-2026:22643
• https://access.redhat.com/errata/RHSA-2026:24508
• https://access.redhat.com/errata/RHSA-2026:24509
• https://access.redhat.com/errata/RHSA-2026:24510

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