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

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

• github.com/0xJacky/Nginx-UI 1.9.10-0.20260901043436-8c9b9a1aff21Fixed version · GitHub Advisories · go package github.com/0xJacky/Nginx-UI: upgrade to 1.9.10-0.20260901043436-8c9b9a1aff21 or later (affected >= 1.9.10-0.20260729084040-acb59fdd81db, < 1.9.10-0.20260901043436-8c9b9a1aff21)
• Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ Advisories ]Government CERT advisories

• BSI CERT-Bund29 Sep 2026WID-SEC-2026-3668

  nginx-ui: Multiple vulnerabilities Translated from German

  CVE-2026-107804CVE-2026-107805

[ Packages ]Affected open-source packages

• github.com/0xJacky/Nginx-UI goAffected >= 1.9.10-0.20260729084040-acb59fdd81db, < 1.9.10-0.20260901043436-8c9b9a1aff21 · fixed in 1.9.10-0.20260901043436-8c9b9a1aff21 · GHSA-j3hg-9rp3-5hw9

[ References ]References

• github.com/0xJacky/nginx-ui/commit/8c9b9a1aff218ee6c980d047b750e49da3c46796Patch
• github.com/0xJacky/nginx-ui/releases/tag/v2.6.0Release Notes
• github.com/0xJacky/nginx-ui/security/advisories/GHSA-j3hg-9rp3-5hw9Vendor Advisory