Name: CVE-2026-57962: Uncontrolled Resource Consumption
Creator: Rapid7
Published: 2026-07-01T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-57962, CWE-400, CVSS 5.3, EPSS 0.00142

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.

CVSS Details

CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Amazon Linux Ami 2	—	Upgrade thunderbird	Oct 19, 2026	Oct 19, 2026
Debian	—	Upgrade thunderbird	Aug 9, 2026	Aug 9, 2026
Mozilla Thunderbird	—	Upgrade to Mozilla Thunderbird version 140.12.1Upgrade to the latest version of Mozilla Thunderbird	Jul 1, 2026	Jun 30, 2026

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CVSS Details

Covered by Rapid7

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