CVE-2026-61630: CWE-287: Improper Authentication in lucasdillmann nginx-ignition
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.
AI Analysis
Technical Summary
The vulnerability in nginx-ignition versions 2.33.0 through 2.35.0 involves improper authentication (CWE-287) where the Time-based One-Time Password (TOTP) used for two-factor authentication (2FA) can be reused within its 30-second validity window. This could allow an attacker with certain privileges to reuse a valid TOTP token, potentially bypassing intended authentication protections. The issue is resolved in version 2.35.1.
Potential Impact
The vulnerability impacts the confidentiality of the authentication process by allowing reuse of a valid TOTP token within its validity period. This could enable unauthorized access if an attacker can capture or reuse the TOTP. However, exploitation requires user interaction and high privileges, and no known exploits are reported in the wild.
Mitigation Recommendations
Upgrade nginx-ignition to version 2.35.1 or later, where the issue is patched. No other mitigations are specified or required.
CVE-2026-61630: CWE-287: Improper Authentication in lucasdillmann nginx-ignition
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.
CVSS v3.1
Score 4.2medium
Affected software
lucasdillmann
nginx-ignition
pkg:github/lucasdillmann/nginx-ignitionRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in nginx-ignition versions 2.33.0 through 2.35.0 involves improper authentication (CWE-287) where the Time-based One-Time Password (TOTP) used for two-factor authentication (2FA) can be reused within its 30-second validity window. This could allow an attacker with certain privileges to reuse a valid TOTP token, potentially bypassing intended authentication protections. The issue is resolved in version 2.35.1.
Potential Impact
The vulnerability impacts the confidentiality of the authentication process by allowing reuse of a valid TOTP token within its validity period. This could enable unauthorized access if an attacker can capture or reuse the TOTP. However, exploitation requires user interaction and high privileges, and no known exploits are reported in the wild.
Mitigation Recommendations
Upgrade nginx-ignition to version 2.35.1 or later, where the issue is patched. No other mitigations are specified or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-10T17:38:57.110Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab13ff155bf5e2cf5064d28
Added to database: 09/21/2026, 14:32:17 UTC
Last enriched: 09/21/2026, 14:46:55 UTC
Last updated: 09/21/2026, 22:42:33 UTC
Views: 12
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