DEBIAN-CVE-2026-6390

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Source
https://security-tracker.debian.org/tracker/CVE-2026-6390
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6390.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-6390
Upstream
  • CVE-2026-6390
Published
2026-07-23T05:16:38Z
Modified
2026-09-14T17:03:44Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / nano

Package

Name
nano
Purl
pkg:deb/debian/nano?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.2-1
7.2-1+deb12u1
7.2-2
8.*
8.0-1
8.1-1
8.2-1
8.3-1
8.4-1
8.5-1
8.6-1
8.7-1
8.7.1-1
9.*
9.0-1
9.1-1
9.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6390.json"

Debian:13 / nano

Package

Name
nano
Purl
pkg:deb/debian/nano?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.4-1
8.4-1+deb13u1
8.5-1
8.6-1
8.7-1
8.7.1-1
9.*
9.0-1
9.1-1
9.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6390.json"

Debian:14 / nano

Package

Name
nano
Purl
pkg:deb/debian/nano?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.0-1

Affected versions

8.*
8.4-1
8.5-1
8.6-1
8.7-1
8.7.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6390.json"