1. Home
  2. CVE Database
  3. CVE-2026-35358
MEDIUM · 4.4

CVE-2026-35358

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...

Vulnerability Description

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 Score

4.4

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
UutilsCoreutils< 0.7.0

Related Weaknesses (CWE)

CWE-706

References

FAQ

What is CVE-2026-35358?

CVE-2026-35358 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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...

How severe is CVE-2026-35358?

CVE-2026-35358 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-35358?

Check the references section above for vendor advisories and patch information. Affected products include: Uutils Coreutils.