Unrated severityNVD Advisory· Published Jul 2, 2026
Debian thunderbird: A malicious LDAP server, which a Thunderbird user is configured to query for add…
CVE-2026-57962
Description
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.
Affected products
2Patches
Vulnerability mechanics
News mentions
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