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.
Exact source revision recorded 25 Oct 2026 08:17:35 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-34752
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: CWE-248
Original publisher date fields
published: 2026-04-02T19:21:33.517
lastModified: 2026-10-06T22:10:00.247
1 source CPE criteria · context only
- cpe:2.3:a:haraka_project:haraka:*:*:*:*:*:node.js:*:*
The original JSON retains the logical configuration operators, exclusions and version bounds.
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON