CVE-2026-35414: OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.

Overview

Severity
Medium (CVSS 4.2)
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploit Status
Not Exploited
Patch Tuesday
2026-Apr
Released
2026-04-04
Last Updated
2026-09-25
EPSS Score
0.24% (percentile: 14.3%)

Detection & Weaponization (1 sources)

Maturity: Exploit

  • GitHub PoC: 1 repositories

Affected Products (5)

Open Source Software

  • azl3 openssh 9.8p1-5 on Azure Linux 3.0
  • cbl2 openssh 8.9p1-9 on CBL Mariner 2.0
  • azl3 openssh 9.8p1-6 on Azure Linux 3.0

Other

  • 20608
  • 20608-21692

Revision History

  • 2026-04-04: Information published.
  • 2026-04-05: Information published.
  • 2026-04-07: Information published.
  • 2026-04-29: Information published.
  • 2026-06-04: Information published.
  • 2026-08-07: Information published.
  • 2026-08-09: Information published.
  • 2026-09-07: Information published.
  • 2026-09-25: Information published.