CVE-2026-35359: uutils coreutils has a Link Following issue
Affects coreutilsSource GCVE Database
Not known to be exploited · CVSS 4.7 Medium.
Data as of 27 Oct 2026, 00:26 UTC
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 22 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| crates.iocoreutils | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should monitor vendor advisories for updates. Until a fix is available, avoid running the vulnerable cp utility in privileged contexts where untrusted users have concurrent write access to source paths.
Description
CVE-2026-35359 is a Time-of-Check to Time-of-Use (TOCTOU) vulnerability in the cp utility of uutils coreutils. It allows an attacker with concurrent write access to bypass the intended no-dereference protection on symbolic links. The vulnerability arises because the utility checks if a source path is a symbolic link using metadata but then opens the path without the O_NOFOLLOW flag, enabling a race condition. This can lead to copying contents of arbitrary sensitive files to attacker-controlled destinations.