What’s Vulnerable › Vulnerabilities

CVE-2026-33591: Authentication bypass on WaptServer

• Severity: critical (CVSS 10.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-03 · updated 2026-10-23
• Weakness: CWE-288

Description

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 products

• Tranquil IT Systems WAPT Server: from 2.6.0.16767 through 2.6.1.17787

References

• https://www.wapt.fr/en/doc/wapt-changelog.html#wapt-2-6-0-16856-2026-06-09
• https://www.wapt.fr/en/doc/wapt-changelog.html#wapt-2-6-1-17813-2026-06-09
• https://www.wapt.fr/en/doc/wapt-security-bulletin.html

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