Vulnerability · CVE-2026-35386
In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line.
Published Apr 2, 2026 · catalog updated Jul 24, 2026 · In OpenSSH before 10.3,
Check if you run it
No confirmed exploitation is on record for CVE-2026-35386. EPSS is 0.36%. Act only if a listed version of In OpenSSH before 10.3, is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (In OpenSSH before 10.3,).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High8.1
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.36%
- Remediation
- Advisory link
- Affected products
- cpe openbsd/openssh
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe openbsd/opensshversion unspecified
How to fix CVE-2026-35386
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-35386. EPSS is 0.36%. Act only if a listed version of In OpenSSH before 10.3, is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-696. EPSS 0.36%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Apr 2, 2026 · NIST NVD
Detected
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.
Jul 24, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-35386
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-35386
30-day exploitation probability 0.4%
first.org - NIST NVDVulnerability recordCVE-2026-35386
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.
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.