How severe is CVE-2026-35378?

CVE-2026-35378 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-35378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35378?

CVE-2026-35378 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35378?

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

Does CVE-2026-35378 have an EU (EUVD) identifier?

Yes. CVE-2026-35378 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25032.

When was CVE-2026-35378 published?

CVE-2026-35378 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-35378

CVE-2026-35378 is a low-severity vulnerability in Uutils Coreutils with a CVSS 3.x base score of 3.3. 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-768.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25032
Weakness: CWE-768
Affected product: Uutils Coreutils
Published: 2026-04-22
Last modified: 2026-06-17

Description

A logic error in the expr utility of uutils coreutils causes the program to evaluate parenthesized subexpressions during the parsing phase rather than at the execution phase. This implementation flaw prevents the utility from performing proper short-circuiting for logical OR (|) and AND (&) operations. As a result, arithmetic errors (such as division by zero) occurring within "dead" branches, branches that should be ignored due to short-circuiting, are raised as fatal errors. This divergence from GNU expr behavior can cause guarded expressions within shell scripts to fail with hard errors instead of returning expected boolean results, leading to premature script termination and breaking GNU-compatible shell control flow.

Frequently asked questions

What is CVE-2026-35378?: A logic error in the expr utility of uutils coreutils causes the program to evaluate parenthesized subexpressions during the parsing phase rather than at the execution phase. This implementation flaw prevents the utility from performing proper short-circuiting for logical OR (|) and AND (&) operations. As a result, arithmetic errors (such as division by zero) occurring within "dead" branches, branches that should be ignored due to short-circuiting, are raised as fatal errors. This divergence from GNU expr behavior can cause guarded expressions within shell scripts to fail with hard errors instead of returning expected boolean results, leading to premature script termination and breaking GNU-compatible shell control flow.
How severe is CVE-2026-35378?: CVE-2026-35378 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-35378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35378?: CVE-2026-35378 affects Uutils Coreutils. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35378 have an EU (EUVD) identifier?: Yes. CVE-2026-35378 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25032.
When was CVE-2026-35378 published?: CVE-2026-35378 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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