CVE-2026-40556

unknowncovered by 1 sourcefirst seen 2026-08-06

CSIRTS triage

What: Insecure directory permissions in GNU nano allow privilege abuse.
Who is affected: Installations of GNU nano with the vulnerable directory permission configuration are affected.
Urgency: Remediation timing depends on deployment context; severity is unknown and requires investigation of exposure.
Action: Upgrade GNU nano to a patched version with corrected directory permissions or manually fix permissions on affected installations.

AI-assisted analysis generated from the source advisory — verify against the original.

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