Protecting Firefox users following the compromise of eMudhra intermediate certificates
2026-10-22T19:23:58Z•d00c0325038452cfafec11cebf8c246eafd63c2f0487e2b6bc5087c578744392
FirefoxGPG signing keysMozillaTLS certificatesThunderbirdWeb PKIcertificate authority compromiseeMudhrain-the-wild exploitintermediate certificatesmixed contentroot store policysecurity auditsoftware supply chain
What happened
Mozilla Security Blog RSS content covering Web PKI and certificate authority incidents, signing-key rotation for Firefox and Thunderbird releases, root-store policy updates, Firefox exploit response, mixed-content hardening, and security audits. The most security-significant item reports compromise of private keys for eight eMudhra intermediate certificates, creating a risk of unauthorized TLS certificate issuance and phishing or man-in-the-middle attacks. No CVE identifiers are provided in the supplied content.
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- mozilla_security_advisories
- Record identifier
- d00c0325038452cfafec11cebf8c246eafd63c2f0487e2b6bc5087c578744392
- Enrichment time
- 2026-10-22T19:23:58Z
- AI-assisted enrichment
- Yes
This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.