Medium 4.4Published Apr 22, 2026

CVE-2026-35358uutils coreutils cp Semantic Loss and Potential Denial of Service with -R via Device Node Stream Reading

Updated under an hour ago (Oct 26, 2026, 6:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Uutils coreutils

Exploited in the last 30 days

The cp utility in uutils coreutils, when performing recursive copies (-R), incorrectly treats character and block device nodes as stream sources rather than preserving them. Because the implementation reads bytes into regular files at the destination instead of using mknod, device semantics are destroyed (e.g., /dev/null becomes a regular file). This behavior can lead to runtime denial of service through disk exhaustion or process hangs when reading from unbounded device nodes.

CVSS: 4.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE): CWE-706
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: canonical
NVD analysis: Analyzed
Record last updated: Apr 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Uutils coreutils uutils:coreutils (from the name)	before 0.7.0	CNA record
uutils coreutils uutils:coreutils	before 0.7.0	NVD

References

References

https://github.com/uutils/coreutils/pull/11163	patch, issue-tracking
https://github.com/uutils/coreutils/issues/9746	issue-tracking, exploit
https://github.com/uutils/coreutils/releases/tag/0.7.0	vendor-advisory, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.