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Fencer Vulns
low 3.6

CVE-2026-35362 json

uutils coreutils Missing TOCTOU Protection on Non-Linux Unix Platforms in Safe Traversal Module

published 2026-04-22 6 mo ago modified 2026-10-26 13 d ago also GHSA-w6xc-g9qj-vp32 , EUVD-2026-25006

cvss
3.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

The safe_traversal module in uutils coreutils, which provides protection against Time-of-Check to Time-of-Use (TOCTOU) symlink races using file-descriptor-relative syscalls, is incorrectly limited to Linux targets. On other Unix-like systems such as macOS and FreeBSD, the utility fails to utilize these protections, leaving directory traversal operations vulnerable to symlink race conditions.

Patch / fix

  • crates.io uucore 0.6.0
  • Uutils coreutils 0.6.0
  • rust-coreutils Debian 14 0.6.0-1

debian advisories DEBIAN-CVE-2026-35362

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-35362 updated cvss 3.6

rust-coreutils: safe_traversal: missing TOCTOU protection on non-Linux Unix platforms

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
6 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
GitHub 3.1 3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
crates.io uucore
<0.6.0
0.6.0

Affected products

  • Uutils coreutils

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.