CVE-2022-35507

HIGH NUCLEI

Proxmox Mail Gateway < 4.1-3 - Injection

Title source: rule

Description

A response-header CRLF injection vulnerability in the Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG) web interface allows a remote attacker to set cookies for a victim's browser that are longer than the server expects, causing a client-side DoS. This affects Chromium-based browsers because they allow injection of response headers with %0d. This is fixed in pve-http-server 4.1-3.

Nuclei Templates (1)

Proxmox - CRLF Injection

HIGHVERIFIEDby DhiyaneshDk

Shodan: html:"Proxmox = {"

References (2)

[Various Sources] https://git.proxmox.com/?p=pve-http-server.git%3Ba=commitdiff%3Bh=936007ae0241811093155000486da171379c23c2

[Exploit, Patch, Technical Description, Third Party Advisory] https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/

Scores

CVSS v3 7.1

EPSS 0.1433

EPSS Percentile 94.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-74

Status published

Products (3)

proxmox/proxmox_mail_gateway

proxmox/pve_http_server < 4.1-3

proxmox/virtual_environment

Published Dec 04, 2022

Tracked Since Feb 18, 2026