CVE-2026-33027
Reported by github_m · Published March 30, 2026
github.com/0xJacky/Nginx-UI is fixed in 1.99 (Go Modules)
Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, the nginx-ui configuration improperly handles URL-encoded traversal sequences. When specially crafted paths are supplied, the backend resolves them to the base Nginx configuration directory and executes the operation on the base directory (/etc/nginx). In particular, this allows an authenticated user to remove the entire /etc/nginx directory, resulting in a partial Denial of Service. This issue has been patched in version 2.3.4.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| github.com/0xJacky/Nginx-UI | Go Modules | 1.99 |
| nginx_ui | nginxui | 2.3.4 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| 0xJacky | nginx-ui | < 2.3.4 |
| github.com | 0xJacky/Nginx-UI | 0 |
| 0xJacky | nginx-ui | 0 |
Timeline
- Mar 28, 2026 PoC Published
- Mar 30, 2026 CVE Published
- Mar 30, 2026 CVE Updated
- Mar 30, 2026 Security Advisory
- May 18, 2026 EPSS Score (30 in total, the first dated here)
- Jun 7, 2026 Coalition ESS Score
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2026-33027
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curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
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References
- https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-m8p8-53vf-8357 x_refsource_CONFIRM
- https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4 x_refsource_MISC
- https://github.com/0xJacky/nginx-ui url
- https://nvd.nist.gov/vuln/detail/CVE-2026-33027 advisory
- https://github.com/advisories/GHSA-m8p8-53vf-8357 advisory