What is CVE-2026-35414?

CVE-2026-35414 is a medium-severity vulnerability in Openbsd Openssh, classified under Always-Incorrect Control Flow Implementation. CVSS score: 4.2/10. Published 2026-04-02.

How severe is CVE-2026-35414?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Is CVE-2026-35414 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Openbsd Openssh

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.

EPSS: 0.000 (9.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Openbsd Openssh — versions 0

Weakness classification (CWE)

CWE-670 — Always-Incorrect Control Flow Implementation

Public proof-of-concept exploits

killercd/CVE-2026-35414

References

Frequently asked questions

What is CVE-2026-35414?: CVE-2026-35414 is a medium-severity vulnerability in Openbsd Openssh, classified under Always-Incorrect Control Flow Implementation. CVSS score: 4.2/10. Published 2026-04-02.
How severe is CVE-2026-35414?: Medium severity. CVSS v3 base score is 4.2 out of 10.
Is CVE-2026-35414 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.