CVE-2026-113470
MediumCVSS 5.4Summary
Mozilla blocked compromised intermediate eMudhra certificates via OneCRL on October 17, and the list was distributed to clients via RemoteSettings the same day. This update contains the updated OneCRL block list, ensuring clients will block the compromised certificates even if RemoteSettings is disabled by policy or otherwise unavailable in the user's network environment. The vulnerability was fixed in Firefox 158.0.1, Firefox ESR 153.5.1, Firefox ESR 115.43.1, Thunderbird 158.0.1, and Thunderbird 153.5.1.
Risk Assessment
Without the update, clients may still trust compromised eMudhra certificates, potentially enabling man-in-the-middle attacks. The update ensures persistent blocking regardless of RemoteSettings.
Recommendation
Update Firefox to 158.0.1 or ESR 153.5.1/115.43.1 and Thunderbird to 158.0.1 or 153.5.1. Ensure policies do not block OneCRL list updates.
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Original NVD description (English source)
Mozilla blocked compromised intermediate eMudhra certificates via OneCRL on the 17th of October which was distributed to clients via RemoteSettings the same day. This update contains the updated OneCRL block list, ensuring clients will block the compromised certificates even if RemoteSettings is disabled by policy or otherwise unavailable in the user's network environment. This vulnerability was fixed in Firefox 158.0.1, Firefox ESR 153.5.1, Firefox ESR 115.43.1, Thunderbird 158.0.1, and Thunderbird 153.5.1.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS