PT-2026-54447 · Mozilla · Thunderbird
Michael Bommarito
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Published
2026-07-01
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Updated
2026-07-01
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CVE-2026-57962
None
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A malicious LDAP server, which a Thunderbird user is configured to query for address-book autocomplete, can stash arbitrarily large amounts of attacker-supplied data into the Thunderbird LDAP client until it crashes due to memory exhaustion. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1.
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Related Identifiers
Affected Products
Thunderbird