CVE-2024-9517
Received
Received - Intake
Refresh Token Grant Bypass in WSO2 Products
Vulnerability report for CVE-2024-9517, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-02
Last updated on: 2026-11-02
Assigner: WSO2 LLC
Description
Description
The refresh token grant type in WSO2 products fails to re-validate account status before issuing new access tokens. This weakness allows an attacker to obtain valid access tokens for user accounts even after they have been blocked by the user store, bypassing account lockout mechanisms.
This vulnerability can lead to unauthorized access to user accounts and their associated resources. Attackers can leverage this to perform actions on behalf of blocked users, potentially leading to privilege escalation or data exfiltration depending on the permissions of the compromised account.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| WSO2 | WSO2 API Manager | 3.1.0 |
| WSO2 | WSO2 API Manager | 3.2.0 |
| WSO2 | WSO2 API Manager | 3.2.1 |
| WSO2 | WSO2 API Manager | 4.0.0 |
| WSO2 | WSO2 API Manager | 4.1.0 |
| WSO2 | WSO2 API Manager | 4.2.0 |
| WSO2 | WSO2 API Manager | 4.3.0 |
| WSO2 | WSO2 API Manager | 4.4.0 |
| WSO2 | WSO2 API Manager | 4.5.0 |
| WSO2 | WSO2 Universal Gateway | 4.5.0 |
| WSO2 | WSO2 Traffic Manager | 4.5.0 |
| WSO2 | WSO2 API Control Plane | 4.5.0 |
| WSO2 | WSO2 Identity Server as Key Manager | 5.10.0 |
| WSO2 | WSO2 Identity Server | 5.10.0 |
| WSO2 | WSO2 Identity Server | 5.11.0 |
| WSO2 | WSO2 Identity Server | 6.0.0 |
| WSO2 | WSO2 Identity Server | 6.1.0 |
| WSO2 | WSO2 Identity Server | 7.0.0 |
| WSO2 | WSO2 Open Banking AM | 2.0.0 |
| WSO2 | WSO2 Open Banking IAM | 2.0.0 |
| WSO2 | WSO2 Carbon OAuth | 6.4.2 |
| WSO2 | WSO2 Carbon OAuth | 6.4.111 |
| WSO2 | WSO2 Carbon OAuth | 6.4.176 |
| WSO2 | WSO2 Carbon OAuth | 6.4.180 |
| WSO2 | WSO2 Carbon OAuth | 6.8.0 |
| WSO2 | WSO2 Carbon OAuth | 6.9.6 |
| WSO2 | WSO2 Carbon OAuth | 6.11.21 |
| WSO2 | WSO2 Carbon OAuth | 6.13.16 |
| WSO2 | WSO2 Carbon OAuth | 6.13.19 |
| WSO2 | WSO2 Carbon OAuth | 6.13.27 |
| WSO2 | WSO2 Carbon OAuth | 7.0.26 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-613 | According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." |
