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Vulnerabilities

Vulnerability · CVE-2026-35339

The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files.

Published Apr 22, 2026 · catalog updated Jun 17, 2026 · The recursive mode (-R)

Check if you run it

No confirmed exploitation is on record for CVE-2026-35339. EPSS is 0.16%. Act only if a listed version of The recursive mode (-R) is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The recursive mode (-R)).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.16%
Remediation
Not established
Affected products
cpe uutils/coreutils

The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as 'Operation not permitted'. Scripts relying on these exit codes may proceed under a false sense of success while sensitive files remain with restrictive or incorrect permissions.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe uutils/coreutilsversion unspecified

How to fix CVE-2026-35339

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-35339. EPSS is 0.16%. Act only if a listed version of The recursive mode (-R) is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-253. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 22, 2026 · NIST NVD

    Detected

    The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as 'Operation not permitted'. Scripts relying on these e

  2. Jun 17, 2026 · NIST NVD

    Updated

    The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as 'Operation not permitted'. Scripts relying on these e

Sources

  • CVE.orgVulnerability recordCVE-2026-35339

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-35339

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-35339

    The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (s

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.