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CVE-2026-35373VulnerabilityPublished Updated

Rust coreutils: A logic error

Affects rust-coreutilsSource GCVE Database

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Authoritative record:CVE-2026-35373· Low 3.3

Not known to be exploited · CVSS 3.3 Low : upgrade to 0.10.0-1ubuntu1 when convenient.

Data as of 10 Nov 2026, 06:11 UTC

CVSS 3.1 base score
3.3Low
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.10.0-1ubuntu1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 9 Nov 2026.

What to do

Upgrade the Ubuntu rust-coreutils package to 0.10.0-1ubuntu1.

Affected software

ProductAffectedFixed in
Ubuntu 26.10rust-coreutilspkg:deb/ubuntu/rust-coreutils?arch=source&distro=stonkingOther threatsAffected
  • <0.10.0-1ubuntu1
Fixed in
  • 0.10.0-1ubuntu1
Ubuntu 26.04 LTSrust-coreutilspkg:deb/ubuntu/rust-coreutils?arch=source&distro=resoluteOther threatsAffected
  • 0.2.2-0ubuntu2 – 0.10.0-1ubuntu2~26.04.1
8 affected builds
Fixed in–
Ubuntu 25.10rust-coreutilspkg:deb/ubuntu/rust-coreutils?arch=source&distro=questingOther threatsAffected
  • 0.0.30-1 – 0.2.2-0ubuntu2.1
16 affected builds
Fixed in–
Ubuntu 24.04 LTSrust-coreutilspkg:deb/ubuntu/rust-coreutils?arch=source&distro=nobleOther threatsAffected
  • 0.0.20-1 – 0.0.24-2
7 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in version 0.10.0-1ubuntu1 of rust-coreutils. Users should upgrade to this version or later to resolve the issue. No additional mitigation steps are indicated by the vendor advisory.

Description

A logic error in the ln utility of the uutils coreutils Rust implementation causes it to reject source paths with non-UTF-8 filename bytes when using target-directory forms. Unlike GNU ln, which treats filenames as raw bytes, uutils coreutils enforces UTF-8 encoding, leading to failure to stat such files and a non-zero exit code. This results in local denial of service for automated scripts or system tasks handling valid non-UTF-8 filenames on Unix filesystems. The issue affects multiple versions prior to 0.10.0-1ubuntu1 and has a medium severity rating.

References

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