by Kastro
Paper/Archive/CVE-2026-33591

CVE-2026-33591

Tranquil IT Systems WAPT Server — Authentication bypass on WaptServer

EPSS 0.7%CVSS 10.0
critical.is priorityof 100
41
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 53.7.537 × 2010.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

A vulnerability in Wapt Server before version 2.6.1.17813 allows a  remote unauthenticated attacker to bypass security restriction using a specially crafted packet and retrieve a valid session token for the targeted account.

Affected

ProductAffectedFixed inSource
WAPT Server2.6.0.16767 – 2.6.1.17787–CNA

Scores by source

ENISA (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refwapt.fr/en/doc/wapt-changelog.html#wapt-2-6-0-16856-2026-06-09refwapt.fr/en/doc/wapt-changelog.html#wapt-2-6-1-17813-2026-06-09advisorywapt.fr/en/doc/wapt-security-bulletin.html