CVE-2026-107805

HIGH 7.5

Nginx UI: Unauthenticated signed-request body staging can exhaust temporary storage

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

Nginx UI is a web user interface for the Nginx web server. From 2.5.0 until 2.6.0, the node-signature authentication path performs temporary file staging of an attacker-controlled request body and synchronizes it before validating the body digest and cryptographic signature. An unauthenticated remote client that can reach the API and provide syntactically valid signature metadata can consume temporary filesystem capacity, disk input and output, and request-processing resources before rejection. The issue affects availability and does not bypass authentication or provide confidentiality or integrity impact. This issue is fixed in version 2.6.0.

CWE	CWE-400
Vendor	0xjacky
Product	nginx-ui
Published	Oct 9, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

0xJacky / nginx-ui

>= 2.5.0, < 2.6.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-j3hg-9rp3-5hw9 github.com: https://github.com/0xJacky/nginx-ui/commit/8c9b9a1aff218ee6c980d047b750e49da3c46796 github.com: https://github.com/0xJacky/nginx-ui/releases/tag/v2.6.0