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Public vulnerability disclosure

CVE-2024-9517

Improper Token Renewal in Refresh Token Grant in Multiple WSO2 Products Allows Unauthorized Access to Blocked Accounts

publishedCWE-613

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.

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Technical severity4.9 mediumCVSS 3.1 · CNA: WSO2
Published2026-11-02Source updated 2026-11-02
Collected2026-11-021 attributed source

Fixes and workarounds

Fix

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-3676/#solution

Source: CNA: WSO2

Affected products and versions

ProductVersionsAuthority
WSO2 API Manager
WSO2 		≥ 0; < 3.1.0 (unknown, custom)
≥ 3.1.0; < 3.1.0.308 (affected, custom)
≥ 3.2.0; < 3.2.0.429 (affected, custom)
≥ 3.2.1; < 3.2.1.49 (affected, custom)
≥ 4.0.0; < 4.0.0.315 (affected, custom)
≥ 4.1.0; < 4.1.0.214 (affected, custom)
≥ 4.2.0; < 4.2.0.149 (affected, custom)
≥ 4.3.0; < 4.3.0.62 (affected, custom)
≥ 4.4.0; < 4.4.0.25 (affected, custom)
≥ 4.5.0; < 4.5.0.9 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Universal Gateway
WSO2 		≥ 4.5.0; < 4.5.0.9 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Traffic Manager
WSO2 		≥ 4.5.0; < 4.5.0.9 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 API Control Plane
WSO2 		≥ 4.5.0; < 4.5.0.10 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Identity Server as Key Manager
WSO2 		≥ 0; < 5.10.0 (unknown, custom)
≥ 5.10.0; < 5.10.0.324 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Identity Server
WSO2 		≥ 0; < 5.10.0 (unknown, custom)
≥ 5.10.0; < 5.10.0.331 (affected, custom)
≥ 5.11.0; < 5.11.0.376 (affected, custom)
≥ 6.0.0; < 6.0.0.219 (affected, custom)
≥ 6.1.0; < 6.1.0.205 (affected, custom)
≥ 7.0.0; < 7.0.0.73 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Open Banking AM
WSO2 		≥ 0; < 2.0.0 (unknown, custom)
≥ 2.0.0; < 2.0.0.357 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Open Banking IAM
WSO2 		≥ 0; < 2.0.0 (unknown, custom)
≥ 2.0.0; < 2.0.0.377 (affected, custom)
Other versions: unaffected 		CNA: WSO2
WSO2 Carbon OAuth
WSO2
org.wso2.carbon.identity.inbound.auth.oauth2:org.wso2.carbon.identity.oauth 		≥ 6.4.2; < 6.4.2.148 (affected, custom)
≥ 6.4.111; < 6.4.111.122 (affected, custom)
≥ 6.4.176; < 6.4.176.26 (affected, custom)
≥ 6.4.180; < 6.4.180.10 (affected, custom)
≥ 6.8.0; < 6.8.0.44 (affected, custom)
≥ 6.9.6; < 6.9.6.21 (affected, custom)
≥ 6.11.21; < 6.11.21.64 (affected, custom)
≥ 6.13.16; < 6.13.16.13 (affected, custom)
≥ 6.13.19; < 6.13.19.7 (affected, custom)
≥ 6.13.27; < 6.13.27.1 (affected, custom)
≥ 7.0.26; < 7.0.26.37 (affected, custom)
Other versions: unknown 		CNA: WSO2

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

Version / scoreVectorAuthority
3.1 / 4.9
medium		 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:NCNA: WSO2

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References