CVE-2026-35386

8.1 highEPSS 0.3%

High (8.1) in openbsd openssh. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

8.1 high

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
CWE: CWE-696
Published: 2026-04-02
Modified: 2026-07-24
Record from: the NVD, synced 2026-10-19

Affected

openbsd:openssh

References

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

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