CVEvulnerability

CVE-2026-6390

6.8 MEDIUM Published 2026-07-23 Modified 2026-09-01 Official page ↗
Status
Awaiting Analysis
Published
2026-07-23
Last modified
2026-09-01
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H
Weaknesses
CWE-134

Description

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. This format string vulnerability may allow an attacker to achieve stack information disclosure, cause a denial of service (crash), or potentially perform arbitrary memory writes.

Related

Weakness · CWE (1)

  • CWE-134 Use of Externally-Controlled Format String weakness

References