CVE-2026-40177

Password bypass when 2FA is activated

9.3 CriticalFix available

ajenti.plugin.core defines all necessary core elements to allow Ajenti to run properly. Prior to 0.112, if the 2FA was activated, it was possible to bypass the password authentication This vulnerability is fixed in 0.112.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.33%Up 0.3 points since Apr 11, 2026

What each source reports

CVE List Score used 9.3

Password bypass when 2FA is activated

Record: CVE-2026-40177
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-287
Updated: 2026-11-02

EUVDEUVD-2026-21575 9.3

Record: EUVD-2026-21575
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-3mcx-6wxm-qr8v 9.1

ajenti.plugin.core has password bypass when 2FA is activated

Impact

If the 2FA was activated, it was possible to bypass the password authentication

Patches

This is fixed in the version 0.112. Users should upgrade to this version as soon as possible.

Record: GHSA-3mcx-6wxm-qr8v
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-287
Updated: 2026-11-02

NVD 9.3

Record: CVE-2026-40177
CVSS 4.0: 9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-287
Updated: 2026-11-02

OSVGHSA-3mcx-6wxm-qr8v 9.1

ajenti.plugin.core has password bypass when 2FA is activated

Impact

If the 2FA was activated, it was possible to bypass the password authentication

Patches

This is fixed in the version 0.112. Users should upgrade to this version as soon as possible.

Record: GHSA-3mcx-6wxm-qr8v
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness: CWE-287
Updated: 2026-11-02

OSVPYSEC-2026-266 9.1

ajenti.plugin.core has password bypass when 2FA is activated

Impact

If the 2FA was activated, it was possible to bypass the password authentication

Patches

This is fixed in the version 0.112. Users should upgrade to this version as soon as possible.

Record: PYSEC-2026-266
CVSS 4.0: 9.1 CriticalCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`ajenti-plugin-core` PyPI	before 0.112	0.112
`ajenti-plugin-core` PyPI	before 0.112, plus listed versions 0.10.100.1000.1010.102 Show 45 moreShow less 0.1030.1040.1050.1060.1070.1080.1090.110.1100.1110.120.130.140.150.160.170.180.190.20.200.210.220.230.240.250.270.280.30.300.310.320.330.340.350.360.370.380.390.40.400.410.420.430.450.46	0.112

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-40177 is a critical vulnerability (CVSS 9.3) in Ajenti, published April 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. Fixed in ajenti-plugin-core 0.112.

References

This page doesn't list everything

Left out here: 53 versions. The JSON record has them.