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CVE-2026-35377VulnerabilityPublished Updated

Rust coreutils: A logic error

Affects rust-coreutilsSource GCVE Database

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Authoritative record:CVE-2026-35377· 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 patch is available in rust-coreutils version 0.10.0-1ubuntu1 that fixes the logic error. Users should upgrade to this version or later to resolve the issue. No additional mitigation actions are required as the fix addresses the root cause.

Description

A logic error in the env utility of the uutils coreutils Rust implementation causes improper parsing of command-line arguments with the -S (split-string) option. Unlike GNU env, which treats backslashes within single quotes literally except for \\ and \' sequences, uutils coreutils incorrectly validates these sequences, causing valid but unrecognized sequences like \a or \x to trigger an "invalid sequence" error and terminate the process with exit status 125. This behavior breaks compatibility with automated scripts and administrative workflows relying on standard split-string semantics, resulting in a local denial of service.

References

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