How severe is CVE-2026-35370?

CVE-2026-35370 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-35370 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35370?

CVE-2026-35370 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35370?

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

Does CVE-2026-35370 have an EU (EUVD) identifier?

Yes. CVE-2026-35370 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25018.

When was CVE-2026-35370 published?

CVE-2026-35370 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-35370

CVE-2026-35370 is a medium-severity vulnerability in Uutils Coreutils with a CVSS 3.x base score of 4.4. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25018
Weakness: CWE-863
Affected product: Uutils Coreutils
Published: 2026-04-22
Last modified: 2026-06-17

Description

The id utility in uutils coreutils miscalculates the groups= section of its output. The implementation uses a user's real GID instead of their effective GID to compute the group list, leading to potentially divergent output compared to GNU coreutils. Because many scripts and automated processes rely on the output of id to make security-critical access-control or permission decisions, this discrepancy can lead to unauthorized access or security misconfigurations.

Frequently asked questions

What is CVE-2026-35370?: The id utility in uutils coreutils miscalculates the groups= section of its output. The implementation uses a user's real GID instead of their effective GID to compute the group list, leading to potentially divergent output compared to GNU coreutils. Because many scripts and automated processes rely on the output of id to make security-critical access-control or permission decisions, this discrepancy can lead to unauthorized access or security misconfigurations.
How severe is CVE-2026-35370?: CVE-2026-35370 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-35370 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35370?: CVE-2026-35370 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35370?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35370 have an EU (EUVD) identifier?: Yes. CVE-2026-35370 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25018.
When was CVE-2026-35370 published?: CVE-2026-35370 was published on 2026-04-22 and last updated on 2026-06-17.

References

https://github.com/uutils/coreutils/issues/10006

Affected products (1)

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

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