CVE-2026-107805: Nginx UI is a web user interface for the Nginx web server

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HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2026-107805 is a high-severity flaw (CVSS 7.5) affecting nginx ui. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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, a

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-10-09
Last modified	2026-10-20

Publisher (CNA): GitHub, Inc. · Vendor: nginxui

Last updated 2026-10-20 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-09 15:17 UTCPublished CVE record published
2026-10-20 20:50 UTCUpdated Record last modified

nginxui nginx ui UPGRADE

Affected: >= 2.5.0 and < 2.6.0

Fixed in: 2.6.0

Safe to downgrade to: a release before 2.5.0

1. Check installed version

apt-cache policy nginx-ui || rpm -q nginx-ui || nginx-ui --version

2. UPGRADE to 2.6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nginx-ui

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nginx-ui

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.5.0 (Debian / Ubuntu)

apt-cache madison nginx-ui sudo apt install nginx-ui=<VERSION_BEFORE_2.5.0> sudo apt-mark hold nginx-ui

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nginx-ui sudo dnf downgrade nginx-ui-<VERSION_BEFORE_2.5.0> sudo dnf versionlock add nginx-ui

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-107805?

nginx ui: upgrade to 2.6.0. Exact commands for each OS are on this page.

Is CVE-2026-107805 being exploited?

CVE-2026-107805 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-107805 affect?

CVE-2026-107805 affects nginx ui. Severity is high (CVSS 7.5). 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

How urgent is CVE-2026-107805?

Priority 46/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

nginx vulnerabilities

Related CVEs

CVE-2026-42221 HIGH 8.1 UPGRADE Nginx UI is a web user interface for the Nginx web server
CVE-2026-42222 HIGH 8.1 DOWNGRADE Nginx UI is a web user interface for the Nginx web server
CVE-2026-42220 MEDIUM 6.5 UPGRADE Nginx UI is a web user interface for the Nginx web server
CVE-2026-42223 MEDIUM 6.5 UPGRADE Nginx UI is a web user interface for the Nginx web server
CVE-2026-44015 HIGH 8.5 UPGRADE Nginx UI is a web user interface for the Nginx web server

References

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