High severity7.5NVD Advisory· Published Apr 2, 2026· Updated Apr 3, 2026
CVE-2026-34752
CVE-2026-34752
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Harakanpm | < 3.1.4 | 3.1.4 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/haraka/Haraka/security/advisories/GHSA-xph3-r2jf-4vp3nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-xph3-r2jf-4vp3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34752ghsaADVISORY
- github.com/haraka/Haraka/releases/tag/v3.1.4nvdRelease NotesWEB
News mentions
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