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CVE-2026-6390

Nano: gnu nano: arbitrary memory writes, information disclosure, or denial of service via format string vulnerability in error handling. PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10affected
Red Hat / Red Hat Enterprise Linux 6affected
Red Hat / Red Hat Enterprise Linux 7affected
Red Hat / Red Hat Enterprise Linux 8affected
Red Hat / Red Hat Enterprise Linux 9affected
Red Hat / Red Hat OpenShift Container Platform 4affected
Red Hat / Red Hat OpenShift Container Platform 4affected

CWE

CWE-134

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.