cbcvebase.
CVE-2026-34752
published 2026-04-02

CVE-2026-34752: 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…

PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.43%
34.5th percentile
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.

Affected

3 ranges
VendorProductVersion rangeFixed in
harakaharaka< 3.1.43.1.4
haraka_projectharaka< 3.1.43.1.4
haraka_projectharaka>= 0 < 3.1.43.1.4

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.08.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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