CVE-2026-107805 Nginx UI: Unauthenticated signed-request body staging can exhaust temporary storage
Unauthenticated attackers can exhaust temporary storage and resources in Nginx UI by sending signed requests with large bodies before validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-107805?
CVE-2026-107805 is a high-severity denial of service vulnerability in 0xJacky nginx-ui, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-400
Which versions are affected by CVE-2026-107805?
3 open source packages ship an affected version, including github.com/0xJacky/Nginx-UI. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20260729084040-acb59fdd81db | 1.9.10-0.20260901043436-8c9b9a1aff21 |
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20260729084040-acb59fdd81db | 1.9.10-0.20260901043436-8c9b9a1aff21 |
github.com/0xJacky/Nginx-UI Go | From 1.9.10-0.20260729084040-acb59fdd81db | 1.9.10-0.20260901043436-8c9b9a1aff21 |
Products include Nginxui Nginx Ui.
How do I fix CVE-2026-107805?
Upgrade github.com/0xJacky/Nginx-UI to 1.9.10-0.20260901043436-8c9b9a1aff21 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-107805 being exploited?
There is no known exploitation of CVE-2026-107805 in the wild and no public exploit code.
Other vulnerabilities in 0xJacky nginx-ui
- CVE-2026-33032 Nginx UI: Unauthenticated MCP Endpoint Allows Remote Nginx Takeover
- CVE-2026-27944 Nginx UI: Unauthenticated Backup Download with Encryption Key Disclosure
- CVE-2024-23827 Nginx-UI arbitrary file write through the Import Certificate feature
- CVE-2026-107806 Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite
- CVE-2026-33026 nginx-ui Backup Restore Allows Tampering with Encrypted Backups
Sources
Also known as GHSA-j3hg-9rp3-5hw9, GO-2026-6734.