Remote Code Execution Vulnerability in Wapt Server by WAPT
CVE-2026-33591

10CRITICAL

Key Information:

Vendor

Tranquil It Systems

Status
Wapt Server
Vendor
CVE Published:
3 August 2026

What is CVE-2026-33591?

A security flaw in Wapt Server prior to version 2.6.1.17813 permits a remote unauthenticated attacker to exploit a crafted packet to bypass security mechanisms. This vulnerability enables attackers to retrieve valid session tokens associated with targeted accounts, posing a significant risk to user security and data integrity.

Affected Version(s)

WAPT Server 2.6.0.16767 <= 2.6.1.17787

References

https://www.wapt.fr/en/doc/wapt-changelog.html#wapt-2-6-0...
release-notes
https://www.wapt.fr/en/doc/wapt-changelog.html#wapt-2-6-1...
release-notes
https://www.wapt.fr/en/doc/wapt-security-bulletin.html
vendor-advisory

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Brian CHERVY, System Engineer from Antiane, RĂ©union Team, https://antiane.com
CERT-FR
.