CVE-2026-56136 Information disclosure in n/a

Medium 4.7 Published 24 Aug 2026 Updated 28 Aug 2026

An out-of-bounds read in NTFS-3G allows attackers to disclose confidential information via a malicious NTFS image.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2026-56136?

CVE-2026-56136 is a medium-severity vulnerability in n/a, published on 24 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In NTFS-3G through 2026.2.25, an out-of-bounds read exists in ntfs_ir_nill() in libntfs-3g/index.c that allows an attacker to read possibly confidential information in an ntfs-3g process by crafting a malicious NTFS image. This read operation is triggered by creation of a file with a crafted name.

Weakness: CWE-125

Which versions are affected by CVE-2026-56136?

It affects 1 product.

Products include Tuxera Ntfs-3g.

How do I fix CVE-2026-56136?

Upgrade to a fixed version.

Is CVE-2026-56136 being exploited?

There is no known exploitation of CVE-2026-56136 in the wild and no public exploit code.

Sources

Also known as AZL-97929, DEBIAN-CVE-2026-56136, GHSA-r66g-c39x-cw95, UBUNTU-CVE-2026-56136.