How severe is CVE-2026-33029?

CVE-2026-33029 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-33029 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33029?

CVE-2026-33029 affects Nginxui Nginx Ui. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33029?

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

Does CVE-2026-33029 have an EU (EUVD) identifier?

Yes. CVE-2026-33029 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17154.

When was CVE-2026-33029 published?

CVE-2026-33029 was published on 2026-03-30 and last updated on 2026-06-17.

CVE-2026-33029

CVE-2026-33029 is a medium-severity vulnerability in Nginxui Nginx Ui with a CVSS 3.x base score of 6.5. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.9
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17154
Weakness: CWE-20
Affected product: Nginxui Nginx Ui
Published: 2026-03-30
Last modified: 2026-06-17

Description

Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, an input validation vulnerability in the logrotate configuration allows an authenticated user to cause a complete Denial of Service (DoS). By submitting a negative integer for the rotation interval, the backend enters an infinite loop or an invalid state, rendering the web interface unresponsive. This issue has been patched in version 2.3.4.

Frequently asked questions

What is CVE-2026-33029?: Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, an input validation vulnerability in the logrotate configuration allows an authenticated user to cause a complete Denial of Service (DoS). By submitting a negative integer for the rotation interval, the backend enters an infinite loop or an invalid state, rendering the web interface unresponsive. This issue has been patched in version 2.3.4.
How severe is CVE-2026-33029?: CVE-2026-33029 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-33029 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33029?: CVE-2026-33029 affects Nginxui Nginx Ui. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33029?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33029 have an EU (EUVD) identifier?: Yes. CVE-2026-33029 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17154.
When was CVE-2026-33029 published?: CVE-2026-33029 was published on 2026-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*

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