How severe is CVE-2026-68489?

CVE-2026-68489 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2026-68489 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-68489?

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-2026-68489 published?

CVE-2026-68489 was published on 2026-09-14 and last updated on 2026-09-18.

CVE-2026-68489

CVE-2026-68489 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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-96.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-96
Published: 2026-09-14
Last modified: 2026-09-18

Description

Static Code Injection in Plesk extensions "Ruby" before 1.6.6 and "Node.js Toolkit" before 2.5.0 allows remote authenticated users to execute arbitrary code as root via custom environment variables.

Frequently asked questions

What is CVE-2026-68489?: Static Code Injection in Plesk extensions "Ruby" before 1.6.6 and "Node.js Toolkit" before 2.5.0 allows remote authenticated users to execute arbitrary code as root via custom environment variables.
How severe is CVE-2026-68489?: CVE-2026-68489 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2026-68489 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-68489?: 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-2026-68489 published?: CVE-2026-68489 was published on 2026-09-14 and last updated on 2026-09-18.

References

https://support.plesk.com/hc/en-us/articles/43473204617239

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