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CVE-2026-107805

HIGH 7.5

Published 2026-10-09 · Last modified 2026-10-13

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.

ELEVATED IMPACT

Severe if exploited (CVSS 7.5), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.5%chance of exploitation in 30 days · 40th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

7.5CVSS 3.1 · HIGH

  • ConfidentialityNone
  • IntegrityNone
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors 0xjacky Nginxui

Products Nginx Ui Nginx Ui

Weakness (CWE)

  • CWE-400: : Uncontrolled Resource Consumption

CVSS vector

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

References and research data (JSON)

Packages and version ranges

Each advisory describes its own package and affected ranges. A boundary applies to that range; it is not a universal upgrade recommendation.

  • github.com/0xJacky/Nginx-UI Go

    pkg:golang/github.com/0xJacky/Nginx-UI

    SEMVER range
    • Introduced version (included): 1.9.10-0.20260729084040-acb59fdd81db
    • Fixed boundary (excluded): 1.9.10-0.20260901043436-8c9b9a1aff21
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-j3hg-9rp3-5hw9/GHSA-j3hg-9rp3-5hw9.json"
  }
}
    GitHub Advisory Database · GHSA-j3hg-9rp3-5hw9 · Updated 2026-10-19T21:40:58.919781212Z
  • github.com/0xJacky/Nginx-UI Go

    pkg:golang/github.com/0xJacky/Nginx-UI

    SEMVER range
    • Introduced version (included): 1.9.10-0.20260729084040-acb59fdd81db
    • Fixed boundary (excluded): 1.9.10-0.20260901043436-8c9b9a1aff21
    Additional upstream package constraints
    {
  "ecosystem": {},
  "database": {
    "source": "https://vuln.go.dev/ID/GO-2026-6734.json"
  }
}
    Go Vulnerability Database · GO-2026-6734 · Updated 2026-10-19T21:31:52.823715419Z

Known Affected Software Configurations

VendorProductVersion range
NginxuiNginx Ui≥ 2.5.0 and < 2.6.0

All CVSS metrics

  • HIGH 7.5 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • HIGH 7.5 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Patches & mitigations

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS