CVE-2026-61630

nginx ignition has TOTP Reuse During Validity Window

MEDIUM
4.2
CVSS Score
Published: September 21, 2026 at 02:17 PM UTC
Updated: September 24, 2026 at 09:37 PM UTC
1 product affected across 1 vendornginx Ignition

Using nginx-ignition by lucasdillmann?

Get instant alerts when new vulnerabilities affect nginx-ignition - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

nginx ignition is a user interface for the nginx web server. In versions 2.33.0 through 2.35.0, any user that has enabled the OTP 2FA can have their TOTP reused during the standard 30 second validity window. Version 2.35.1 patches the issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.35.1
Affected range stops below 2.35.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.2MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-287

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card