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CVE-2026-107810

HIGH 8.1

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

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.

ELEVATED IMPACT

Severe if exploited (CVSS 8.1), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 38th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

8.1CVSS 3.1 · HIGH

  • ConfidentialityNone
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires a low-privilege account
  • ✓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-59: : Improper Link Resolution Before File Access ('Link Following')
  • CWE-61: : UNIX Symbolic Link (Symlink) Following

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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): 1.9.10-0.20250517140552-daee3ac7ade1
    • Fixed boundary (excluded): 1.9.10-0.20260728074146-a467ed652591
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-p8v3-89rh-jxc7/GHSA-p8v3-89rh-jxc7.json"
  }
}
    GitHub Advisory Database · GHSA-p8v3-89rh-jxc7 · Updated 2026-10-19T21:40:47.010282307Z
  • github.com/0xJacky/Nginx-UI Go

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

    SEMVER range
    • Introduced version (included): 1.9.10-0.20250517140552-daee3ac7ade1
    • Fixed boundary (excluded): 1.9.10-0.20260728074146-a467ed652591
    Additional upstream package constraints
    {
  "ecosystem": {},
  "database": {
    "source": "https://vuln.go.dev/ID/GO-2026-6707.json"
  }
}
    Go Vulnerability Database · GO-2026-6707 · Updated 2026-10-19T21:31:49.020482940Z

Known Affected Software Configurations

VendorProductVersion range
NginxuiNginx Ui≥ 2.0.0 and < 2.5.0

All CVSS metrics

  • HIGH 8.1 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
  • HIGH 8.1 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References

Exploit-tagged references (not proof of a PoC)

Patches & mitigations

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS