CVE-2026-35414: exploitation status and patch state

CVE-2026-35414 · CVSS 4.2 MEDIUM · EPSS <1% · patch available

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.

Is CVE-2026-35414 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at <1%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

• CBL-Mariner Releases

What PlainSec published about CVE-2026-35414

• Debian 13.5 Refreshes Install Media, Not Your Live Fleet (2026-05-18)
• OpenSSH Parser Bug Turns CA Trust Into Root Access (2026-04-27)

Primary sources

• NVD record

What this record does not say

• No affected package data.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.