Disclosure summary
Haraka is a Node.js mail server. Prior to version 3.1.4, sending an email with __proto__: as a header name crashes the Haraka worker process. This issue has been patched in version 3.1.4.
Source-reported weakness categories
CWE-248
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-34752
Open original source · Updated Oct 06, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| haraka_project | haraka | * {"versionEndExcluding":"3.1.4"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Release Notes
- github.com — Exploit, Vendor Advisory
PUBLISHED 2026-04-02T15:21:33-04:00
MODIFIED 2026-10-06T18:10:00-04:00
INGESTED 2026-10-08T12:40:21-04:00