https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-28T07:41:50.521275+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2023-54391 CVE-2023-54391 — Proxmox VE 7.0-8.0 Authentication Bypass via tfa-challenge Parameter 2026-09-28T07:41:50.522722+00:00

Affected: Proxmox Server Solutions GmbH Proxmox Virtual Environment (VE)

Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnerability in libpve-access-control before 8.0.4 that allows unauthenticated attackers to authenticate as any existing enabled user without a configured second factor by supplying an arbitrary tfa-challenge value in the API login endpoint. Attackers can send a POST request to the access ticket API endpoint with any value in the tfa-challenge parameter to completely skip password verification, gaining unauthorized access including to the root@pam account. All affected releases are end of life.