CVE-2026-35339
CVE-2026-35339 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-2026-24965
- Weakness: CWE-253
- Affected product: Uutils Coreutils
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-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 (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.
- How severe is CVE-2026-35339?
- CVE-2026-35339 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-2026-35339 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-2026-35339?
- CVE-2026-35339 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-35339?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-35339 have an EU (EUVD) identifier?
- Yes. CVE-2026-35339 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24965.
- When was CVE-2026-35339 published?
- CVE-2026-35339 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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All CVEs affecting Uutils Coreutils →
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