Security Vulnerabilities fixed in Thunderbird 140.16 — Mozilla

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Publisherwww.mozilla.org

Article IDNo stable ID in source URL

Verified snapshot26 Sept 2026, 16:54 UTC

Linked CVEs3

Linked CVE reports

These are source relationships, not a claim that this article fixes every affected product or branch.

CVE-2026-92238Ambiguous parsing of mail headers
CVE-2026-92240Out-of-bounds read in IMAP response parser
CVE-2026-92239Buffer overrun in IMAP

Source and provenance

Original title: Security Vulnerabilities fixed in Thunderbird 140.16 — Mozilla. Captured 26 Sept 2026, 16:54 UTC. The stored article is used for enrichment and change detection; BlackTree does not republish the publisher's full text here.

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