Updated: 2025-12-18 18:00:59.578274
Description:
ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | NONE | 0.0 |
| CVSS Version 3.x | MEDIUM | 5.3 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | openssh | 8.7p1 | 5.3 | MEDIUM | Released | CLSA-2026:1767954480 | 2026-01-09 11:39:43 | |
| CentOS 8.4 ELS | openssh | 8.0p1-6 | 5.3 | MEDIUM | Released | CLSA-2026:1767627828 | 2026-01-05 20:08:56 | |
| CentOS 8.5 ELS | openssh | 8.0p1-10 | 5.3 | MEDIUM | Released | CLSA-2026:1767627264 | 2026-01-05 20:08:58 | |
| CentOS Stream 8 ELS | openssh | 8.0p1 | 5.3 | MEDIUM | Released | CLSA-2026:1767627533 | 2026-01-05 20:08:57 | |
| TuxCare 9.6 ESU | openssh | 8.7p1 | 5.3 | MEDIUM | Released | CLSA-2026:1767955216 | 2026-01-09 11:39:41 |