Rust coreutils: The cp utility
Affects rust-coreutilsSource GCVE Database
Not known to be exploited · CVSS 4.4 Medium.
Data as of 11 Nov 2026, 12:41 UTC
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 25.10rust-coreutilspkg:deb/ubuntu/rust-coreutils?arch=source&distro=questingOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSrust-coreutilspkg:deb/ubuntu/rust-coreutils?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
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AI-suggested
Until a fix is available, avoid performing recursive copies (-R) on device nodes using the affected versions of rust-coreutils.
Description
A vulnerability in the cp utility of rust-coreutils causes recursive copies (-R) to mishandle character and block device nodes by copying their contents as regular files instead of preserving device semantics. This can lead to denial of service conditions such as disk exhaustion or process hangs when interacting with device nodes like /dev/null.