How severe is CVE-2023-26105?

CVE-2023-26105 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-26105 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26105?

CVE-2023-26105 affects Utilities Project Utilities. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26105?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-26105 published?

CVE-2023-26105 was published on 2023-02-28 and last updated on 2026-06-17.

CVE-2023-26105

CVE-2023-26105 is a high-severity vulnerability in Utilities Project Utilities with a CVSS 3.x base score of 7.5. 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-1321.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1321
Affected product: Utilities Project Utilities
Published: 2023-02-28
Last modified: 2026-06-17

Description

All versions of the package utilities are vulnerable to Prototype Pollution via the _mix function.

Frequently asked questions

What is CVE-2023-26105?: All versions of the package utilities are vulnerable to Prototype Pollution via the _mix function.
How severe is CVE-2023-26105?: CVE-2023-26105 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-26105 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26105?: CVE-2023-26105 affects Utilities Project Utilities. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26105?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-26105 published?: CVE-2023-26105 was published on 2023-02-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:utilities_project:utilities:*:*:*:*:*:node.js:*:*

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