November 13, 2026

CVE Watchtower

CVE-2026-128332knadh listmonk

NVD

Vulnerability Summary

Listmonk 6.0.0 before 7.0.0-beta.2 contains a 2FA bypass vulnerability that allows attackers with a valid password to brute-force TOTP codes because the attempt counter resets on every new password login. Attackers can repeatedly submit credentials to POST /admin/login to obtain fresh tokens, each allowing 15 more guesses, gaining sessions for 2FA-protected accounts including Super Admin.
Severity Level
CRITICAL(9.1)
Published Date
Nov 13, 2026
Last Modified
Nov 13, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.46%Probability
Root Weakness (CWE)
CWE-307 ↗
See the MITRE CWE entry for the full definition of this weakness.
CVSS v4.0 Base Metrics — Score 9.1 (CRITICAL)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Attack VectorNetwork
Attack ComplexityHigh
Attack RequirementsPresent
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 7.4)
CVSS v3.1 Base Metrics — Score 7.4 (HIGH)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • knadh listmonk >= 6.0.0 and < 7.0.0-beta.2
Patched Versions
  • knadh listmonk 7.0.0-beta.2

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is critical.

  1. Check whether you run knadh listmonk and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Nov 13, 2026Published
  • Nov 13, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

Get notified about new knadh listmonk CVEsYou are reading CVE-2026-128332. Get an email when KEV listings, exploits or new CVEs match your stack.
Set up CVE alerts

External References

Data last checked: Nov 13, 2026 18:23 UTC