https://seclists.org/oss-sec/2026/q1/308: Some telnet clients leak environment variables
Published Mar 13, 2026
·Updated
Affected Software
1 affected component
OpenBSD OpenBSD
Frequently Asked Questions
1
What is the severity of CVE-2026-XXXX?
The severity of CVE-2026-XXXX is categorized as partial leakage of sensitive environment variables in OpenBSD.
2
How do I fix CVE-2026-XXXX?
To mitigate CVE-2026-XXXX, ensure that sensitive environment variables are explicitly exported before using the telnet client.
3
What types of environment variables are affected by CVE-2026-XXXX?
CVE-2026-XXXX specifically leaks environment variables such as DISPLAY, XAUTHORITY, and PRINTER without prior export.
4
Is the leak in CVE-2026-XXXX applicable to all versions of OpenBSD?
No, the leak described in CVE-2026-XXXX is specific to OpenBSD 7.8.
5
Can the leakage in CVE-2026-XXXX lead to any security risks?
Yes, the leakage of sensitive environment variables in CVE-2026-XXXX may expose user information and create security vulnerabilities.