Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-6390
A flaw was found in GNU nano's multi-buffer error message handling. When a user opens multiple files at startup and one triggers an ALERT-level error, a specially crafted filename containing printf format specifiers can be reinterpreted. T…
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
Frequently asked questions
- What is CVE-2026-6390?
- CVE-2026-6390 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Use of Externally-Controlled Format String. CVSS score: 6.8/10. Published 2026-07-23.
- How severe is CVE-2026-6390?
- Medium severity. CVSS v3 base score is 6.8 out of 10.