Vulnerability Database · npm · mailparser · Version
mailparser 3.4.0
3.4.0 is affected by 1 vulnerability.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to.
Critical 0 High 0 Medium 0 Low 1 Unrated 0
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Released 11 Oct 2021
Licence MIT
Also known from other sources 1
Newer releases 171
Database updated 23/Oct/2026
Release and licence data published by the npm registry. Licence information is not legal advice.
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01 Vulnerabilities affecting this version
mailparser 3.4.0 vulnerabilities
1 vulnerability cover mailparser 3.4.0. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2026-3455: mailparser Vulnerable to Cross-site Scripting (XSS) | 6.1 low | 3.9.3 | 03 Mar 2026 |
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Questions
About mailparser 3.4.0
Is mailparser 3.4.0 vulnerable?
Yes. 1 vulnerability in the Vulert database cover mailparser 3.4.0: 0 critical, 0 high, 0 medium and 1 low. Each entry above names the fixed version to move to.
Is 3.4.0 the latest release of mailparser?
No. 3.4.0 was published 11 Oct 2021, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor mailparser for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the mailparser version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.