CVE-2026-35358
uutils coreutils cp Semantic Loss and Potential Denial of Service with -R via Device Node Stream Reading
CVSS Score
4.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-706 |
| Vendor | uutils |
| Product | coreutils |
| Published | Apr 22, 2026 |
| Last Updated | Apr 22, 2026 |
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CVSS v3 Breakdown
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 Versions
Uutils / coreutils
0 < 0.7.0
References
Credits
Zellic