How severe is CVE-2026-35340?

CVE-2026-35340 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-35340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35340?

CVE-2026-35340 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35340?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-35340 have an EU (EUVD) identifier?

Yes. CVE-2026-35340 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24967.

When was CVE-2026-35340 published?

CVE-2026-35340 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-35340

CVE-2026-35340 is a medium-severity vulnerability in Uutils Coreutils with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-253.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24967
Weakness: CWE-253
Affected product: Uutils Coreutils
Published: 2026-04-22
Last modified: 2026-06-17

Description

A flaw in the ChownExecutor used by uutils coreutils chown and chgrp causes the utilities to return an incorrect exit code during recursive operations. The final exit code is determined only by the last file processed. If the last operation succeeds, the command returns 0 even if earlier ownership or group changes failed due to permission errors. This can lead to security misconfigurations where administrative scripts incorrectly assume that ownership has been successfully transferred across a directory tree.

Frequently asked questions

What is CVE-2026-35340?: A flaw in the ChownExecutor used by uutils coreutils chown and chgrp causes the utilities to return an incorrect exit code during recursive operations. The final exit code is determined only by the last file processed. If the last operation succeeds, the command returns 0 even if earlier ownership or group changes failed due to permission errors. This can lead to security misconfigurations where administrative scripts incorrectly assume that ownership has been successfully transferred across a directory tree.
How severe is CVE-2026-35340?: CVE-2026-35340 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-35340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35340?: CVE-2026-35340 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35340?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35340 have an EU (EUVD) identifier?: Yes. CVE-2026-35340 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24967.
When was CVE-2026-35340 published?: CVE-2026-35340 was published on 2026-04-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*

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