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TI-2026-70043 Aliases CVE-2026-107810GHSA-p8v3-89rh-jxc7

Nginx UI backup restore follows symlinks into live Nginx config

Priority HIGH 68CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Nginx UI from 2.0.0 before 2.5.0 is affected. Its backup restore code extracts inner archives before applying the restore_nginx and restore_nginx_ui flags and allows symlinks to the live Nginx configuration path (CWE-59). An authenticated user who can create and restore backups can craft one that writes a file through such a symlink, even when both restore flags are false. This can persistently inject configuration or cause denial of service, and a proof-of-concept exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, internal/backup/restore.go extracts inner archives before applying the restore_nginx and restore_nginx_ui flags and permits symlinks targeting the live Nginx configuration path. An authenticated user who can create and restore backups can craft a valid backup that places a symlink in the staging tree and then writes a regular file through that link, even when both restore flags are false. This can persistently inject configuration or cause denial of service when the modified files are later consumed. This issue is fixed in version 2.5.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00445 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed nginx-ui (0xJacky): 2.5.0github.com/0xJacky/Nginx-UI (Go): 1.9.10-0.20260728074146-a467ed652591

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
0xJackynginx-ui2.0.0 to before 2.5.02.5.0Patch availableCNA
—github.com/0xJacky/Nginx-UI (Go)1.9.10-0.20250517140552-daee3ac7ade1 to before 1.9.10-0.20260728074146-a467ed6525911.9.10-0.20260728074146-a467ed652591Patch availableGHSA-p8v3-89rh-jxc7
  • nginx-ui Vendor0xJacky Affected 2.0.0 to before 2.5.0 Fixed in 2.5.0 Patch available CNA
  • github.com/0xJacky/Nginx-UI (Go) Vendor— Affected 1.9.10-0.20250517140552-daee3ac7ade1 to before 1.9.10-0.20260728074146-a467ed652591 Fixed in 1.9.10-0.20260728074146-a467ed652591 Patch available GHSA-p8v3-89rh-jxc7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*2.0.0 to before 2.5.0Vulnerable0xJacky
  • cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:* Versions 2.0.0 to before 2.5.0 Vulnerable ·0xJacky

Remediation

Upgrade Nginx UI to version 2.5.0. Update the Go module github.com/0xJacky/Nginx-UI to 1.9.10-0.20260728074146-a467ed652591.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA nginx-ui (0xJacky) Fixed in 2.5.0
  • Fix · GHSA-p8v3-89rh-jxc7 github.com/0xJacky/Nginx-UI (Go) Fixed in 1.9.10-0.20260728074146-a467ed652591 Advisory →

Timeline

  1. 2026-10-09 Threatist record created from CVE-2026-107810
  2. 2026-10-09 Alias added: GHSA-p8v3-89rh-jxc7
  3. 2026-10-11 Priority changed: MEDIUM → LOW
  4. 2026-10-13 CISA SSVC decision points changed
  5. 2026-10-13 Priority changed: LOW → HIGH

References

Exploit 1

Patch 1

Other 2

  • TI-2026-25478 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover CVSS 3.1CRITICAL 9.8
  • TI-2026-25472 nginx-ui Backup Restore Allows Tampering with Encrypted Backups CVSS 4.0CRITICAL 9.4
  • TI-2026-22288 Nginx UI: Unauthenticated Backup Download with Encryption Key Disclosure CVSS 3.1CRITICAL 9.8
  • TI-2024-15821 Nginx-UI arbitrary file write through the Import Certificate feature CVSS 3.1CRITICAL 9.8
  • TI-2026-70057 Code injection in Nginx UI backup restore allows code execution CVSS 4.0CRITICAL 9.4
  • TI-2026-32056 Nginx UI: Server-Side Request Forgery (SSRF) via Cluster Proxy Middleware Allows Access to Internal Services CVSS 3.1CRITICAL 9.9
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences