Home

Description

Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

PUBLISHED Reserved 2026-01-13 | Published 2026-01-13 | Updated 2026-01-15 | Assigner mozilla

Product status

Any version before 147
affected

Any version before 140.7
affected

Any version before 147
affected

Any version before 140.7
affected

Credits

Vladislav Plyatsok

References

bugzilla.mozilla.org/show_bug.cgi?id=1989340

www.mozilla.org/security/advisories/mfsa2026-01/

www.mozilla.org/security/advisories/mfsa2026-03/

www.mozilla.org/security/advisories/mfsa2026-04/

www.mozilla.org/security/advisories/mfsa2026-05/

cve.org (CVE-2026-0883)

nvd.nist.gov (CVE-2026-0883)

Download JSON