CVE-2026-3889

Description

Spoofing issue in Thunderbird. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9.

PUBLISHED Reserved 2026-03-10 | Published 2026-03-24 | Updated 2026-04-13 | Assigner mozilla

Product status

Credits

Eemeli Aro

References

bugzilla.mozilla.org/show_bug.cgi?id=2020723

www.mozilla.org/security/advisories/mfsa2026-23/

www.mozilla.org/security/advisories/mfsa2026-24/

cve.org (CVE-2026-3889)

nvd.nist.gov (CVE-2026-3889)

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