CVE-2026-35386HIGH 8.1EPSS p15.7%

CVE-2026-35386CVE-2026-35386

Description

In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.25% probability of exploitation · percentile 15.7% · 2026-06-19T12:03:05Z
Published2026-04-02
Last modified2026-04-27

Underlying weaknesses· 1

CWE-696

References

  1. https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
  2. https://www.openssh.org/releasenotes.html#10.3p1
  3. https://www.openwall.com/lists/oss-security/2026/04/02/3

1

TypeTargetConfidenceTier
WeaknessIncorrect Behavior Ordercwe-6960%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.