Predictable CSRF Tokens Mitigated in Unknown Product
CVE-2026-19636 Published on August 14, 2026

Insuffucient Protections Lead to Brute Force
An issue was identified in which CSRF tokens were generated using a predictable method, potentially reducing their effectiveness as a security control. This has been addressed by improving the randomness and entropy of token generation.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-19636 is exploitable with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Type

Generation of Incorrect Security Tokens

The product implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens generated in the system are incorrect.


Products Associated with CVE-2026-19636

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Affected Versions

Tenable, Inc. Security Center: