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CVE-2026-57962

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2774b35f3cf6aed4393f4c54db02d7eaa44a2acb4509b7b15c2b90e3a6976aeb
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThanOrEqual":"140.*","status":"unaffected","version":"140.12.1","versionType":"rpm"},{"lessThanOrEqual":"*","status":"unaffected","version":"152.0.1","versionType":"rpm"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acc9b656423604e502363f7d3270b19d0310967e63c2a2576057d428150df080 · sha256:1b19ddf409e3047f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:acc9b656423604e502363f7d3270b19d0310967e63c2a2576057d428150df080 · sha256:1b19ddf409e3047f… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:acc9b656423604e502363f7d3270b19d0310967e63c2a2576057d428150df080 · sha256:1b19ddf409e3047f… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

3 source assertions
{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2042872"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acc9b656423604e502363f7d3270b19d0310967e63c2a2576057d428150df080 · sha256:1b19ddf409e3047f… · /containers/cna/references/0
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-63/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acc9b656423604e502363f7d3270b19d0310967e63c2a2576057d428150df080 · sha256:1b19ddf409e3047f… · /containers/cna/references/1
{"url":"https://www.mozilla.org/security/advisories/mfsa2026-64/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acc9b656423604e502363f7d3270b19d0310967e63c2a2576057d428150df080 · sha256:1b19ddf409e3047f… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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