CVE-2026-35344 uutils coreutils dd Silent Data Corruption via Unconditional Truncation Error Suppression

What is CVE-2026-35344?

CVE-2026-35344 is a low-severity vulnerability in Uutils coreutils, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The dd utility in uutils coreutils suppresses errors during file truncation operations by unconditionally calling Result::ok() on truncation attempts. While intended to mimic GNU behavior for special files like /dev/null, the uutils implementation also hides failures on regular files and directories caused by full disks or read-only file systems. This can lead to silent data corruption in backup or migration scripts, as the utility may report a successful operation even when the destination file contains old or garbage data.

Weakness: CWE-252

Which versions are affected by CVE-2026-35344?

2 open source packages ship an affected version, including coreutils. It affects 1 product.

Products include Uutils Coreutils.

How do I fix CVE-2026-35344?

Apply the vendor's patch.

Is CVE-2026-35344 being exploited?

There is no known exploitation of CVE-2026-35344 in the wild and no public exploit code.

Other vulnerabilities in Uutils coreutils

• CVE-2026-35338 uutils coreutils chmod Path Traversal Bypass of --preserve-root High 7.3
• CVE-2026-35368 uutils coreutils chroot Local Privilege Escalation and chroot Escape in via Name Service Switch (NSS) Injection High 7.2
• CVE-2026-35341 uutils coreutils mkfifo Unauthorized Permission Change on Existing Files High 7.1
• CVE-2026-35352 uutils coreutils mkfifo Privilege Escalation via TOCTOU Race Condition High 7.0
• CVE-2026-35349 uutils coreutils Path-Based Safety Bypass with --preserve-root Medium 6.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-35344, GHSA-wh8p-h9hw-x2mc, UBUNTU-CVE-2026-35344.