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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-57962

Denial-of-service via malicious LDAP address-book server

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Status
Published
Published
Updated
Assigning organization
mozilla

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Thunderbird

  • 140.12.1 to ≤ 140.*unaffected
  • 152.0.1 to ≤ *unaffected

References