CVE-2026-34975: plunk before 0.8.0 (exclusive), < 0.8.0

CVE-2026-34975. CVSS 3.1 base score 4.3 (MEDIUM, NVD). EPSS 0.00311 (percentile 0.22725), scored 22-Oct-2026.

Affected technology

plunk · before 0.8.0 (exclusive)
useplunk

plunk · < 0.8.0
useplunk

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated API user could inject arbitrary email headers (e.g. Vendor/CNA’s CVSS 3.1 assessment (base score 8.5/10) rates confidentiality impact as high; integrity impact as low; availability impact as none. NVD’s CVSS 3.1 assessment (base score 4.3/10) rates confidentiality and availability impact as none; integrity impact as low.

Published 24-Oct-2026 15:09 UTC

CWE: CWE-93
CCR priority: 17.3 /100 (P5)
CVSS 3.1: 4.3 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · NVD
EPSS: 0.00311 · percentile 0.22793 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-34975.html