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Vulnerability · Published Apr 22, 2026 · Assigned by canonical

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

Low 3.3

In plain English

A low-severity security flaw in coreutils from Uutils. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.1%top 98.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12rust-coreutilsno fix listedDEBIAN-CVE-2026-35344
Debian:13rust-coreutilsno fix listedDEBIAN-CVE-2026-35344
Debian:14rust-coreutils0.10.0-1DEBIAN-CVE-2026-35344
Ubuntu:24.04:LTSrust-coreutilsno fix listedUBUNTU-CVE-2026-35344
Ubuntu:25.10rust-coreutilsno fix listedUBUNTU-CVE-2026-35344
Ubuntu:26.04:LTSrust-coreutilsno fix listedUBUNTU-CVE-2026-35344
Ubuntu:26.10rust-coreutilsno fix listedUBUNTU-CVE-2026-35344

Affected products (as reported)

VendorProductVersions
Uutils coreutils see references

Weakness: CWE-252 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References