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CVE-2026-33591: A vulnerability in Wapt Server before version 2.6.1.17813 allows a remote unauthenticated attacker to bypass…
CVE-2026-33591 is rated critical with a CVSS v4.0 base score of 10.0. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability 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.
Severity breakdown
CVSS v4.0 10.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
- Attack vector: Network. Exploitable remotely over the network.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Attack requirements: None. No deployment or execution conditions are needed.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Confidentiality impact (vulnerable system): High. Total loss of confidentiality.
- Integrity impact (vulnerable system): High. Total loss of integrity.
- Availability impact (vulnerable system): High. Total loss of availability.
- Confidentiality impact (subsequent systems): High. Total loss of confidentiality on other systems.
- Integrity impact (subsequent systems): High. Total loss of integrity on other systems.
- Availability impact (subsequent systems): High. Total loss of availability of other systems.
Underlying weakness
CWE-288: Authentication Bypass Using an Alternate Path or Channel
The product requires authentication, but the product has an alternate path or channel that does not require authentication.