CVE-2024-8995

Authorization Code issued for Deleted User reuse in Multiple WSO2 Products Allows Unauthorized Access

Published Aug 6, 2026 CVSS 3.1 · 4.9 Medium EPSS < 1% KEV · Not listed

Description

Unused authorization codes issued to deleted users are not being properly invalidated or removed from the system. This allows for the persistence of these codes, enabling them to be potentially reused.

If an attacker possesses both the authorization code and the associated client credentials (client ID and client secret), they can leverage these unused codes to obtain access tokens on behalf of users who have already been deleted. This may lead to unauthorized access to sensitive resources and services, contingent on the scopes originally authorized for the compromised authorization code.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

WSO2

WSO2 API Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 3.1.0
`3.1.0`	affected	< 3.1.0.320
`3.2.0`	affected	< 3.2.0.413
`3.2.1`	affected	< 3.2.1.90
`4.0.0`	affected	< 4.0.0.334
`4.1.0`	affected	< 4.1.0.255
`4.2.0`	affected	< 4.2.0.195
`4.3.0`	affected	< 4.3.0.106
`4.4.0`	affected	< 4.4.0.70
`4.5.0`	affected	< 4.5.0.55
`4.6.0`	affected	< 4.6.0.19

WSO2

WSO2 Traffic Manager

unaffected

Version	Status	Constraints
`4.5.0`	affected	< 4.5.0.54
`4.6.0`	affected	< 4.6.0.19

WSO2

WSO2 API Control Plane

unaffected

Version	Status	Constraints
`4.5.0`	affected	< 4.5.0.56
`4.6.0`	affected	< 4.6.0.20

WSO2

WSO2 Universal Gateway

unaffected

Version	Status	Constraints
`4.5.0`	affected	< 4.5.0.55
`4.6.0`	affected	< 4.6.0.19

WSO2

WSO2 Open Banking AM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.369

WSO2

WSO2 Identity Server

unaffected

Version	Status	Constraints
`0`	unknown	< 5.10.0
`5.10.0`	affected	< 5.10.0.345
`5.11.0`	affected	< 5.11.0.395
`6.0.0`	affected	< 6.0.0.229
`6.1.0`	affected	< 6.1.0.208

WSO2

WSO2 Open Banking IAM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.389

WSO2

WSO2 Identity Server as Key Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 5.10.0
`5.10.0`	affected	< 5.10.0.338

WSO2

WSO2 Carbon OAuth

unknown

Version	Status	Constraints
`6.4.2`	affected	< 6.4.2.154
`6.4.111`	affected	< 6.4.111.131
`6.4.176`	affected	< 6.4.176.35
`6.4.180`	affected	< 6.4.180.17
`6.8.0`	affected	< 6.8.0.46
`6.9.6`	affected	< 6.9.6.34
`6.11.21`	affected	< 6.11.21.59
`6.13.16`	affected	< 6.13.16.27
`6.13.19`	affected	< 6.13.19.19
`6.13.27`	affected	< 6.13.27.15
`6.13.41`	affected	< 6.13.41.4
`6.11.53`	unaffected	≤ *

Configuration 1 [-]

OR	cpe:2.3:a:wso2:api_control_plane::::::::
	cpe:2.3:a:wso2:api_control_plane::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:api_manager::::::::
	cpe:2.3:a:wso2:identity_server::::::::
	cpe:2.3:a:wso2:identity_server::::::::
	cpe:2.3:a:wso2:identity_server::::::::
	cpe:2.3:a:wso2:identity_server::::::::
	cpe:2.3:a:wso2:identity_server_as_key_manager::::::::
	cpe:2.3:a:wso2:open_banking_am::::::::
	cpe:2.3:a:wso2:open_banking_iam::::::::
	cpe:2.3:a:wso2:traffic_manager::::::::
	cpe:2.3:a:wso2:traffic_manager::::::::
	cpe:2.3:a:wso2:universal_gateway::::::::
	cpe:2.3:a:wso2:universal_gateway::::::::

No data.

Vendor Product Versions

Wso2

Api Control Plane

Version	Status	Scheme	Platform
`[4.5.0,4.5.0.56)`	affected	generic	—
`[4.6.0,4.6.0.20)`	affected	generic	—

Wso2

Api Manager

Version	Status	Scheme	Platform
`[0,3.1.0)`	unaffected	generic	—
`[3.1.0,3.1.0.320)`	affected	generic	—
`[3.2.0,3.2.0.413)`	affected	generic	—
`[3.2.1,3.2.1.90)`	affected	generic	—
`[4.0.0,4.0.0.334)`	affected	generic	—
`[4.1.0,4.1.0.255)`	affected	generic	—
`[4.2.0,4.2.0.195)`	affected	generic	—
`[4.3.0,4.3.0.106)`	affected	generic	—
`[4.4.0,4.4.0.70)`	affected	generic	—
`[4.5.0,4.5.0.55)`	affected	generic	—
`[4.6.0,4.6.0.19)`	affected	generic	—

Wso2

Identity Server

Version	Status	Scheme	Platform
`[5.10.0,5.10.0.345)`	affected	generic	—
`[5.11.0,5.11.0.395)`	affected	generic	—
`[6.0.0,6.0.0.229)`	affected	generic	—
`[6.1.0,6.1.0.208)`	affected	generic	—

Wso2

Identity Server As Key Manager

Version	Status	Scheme	Platform
`[5.10.0,5.10.0.338)`	affected	generic	—

Wso2

Open Banking Am

Version	Status	Scheme	Platform
`[2.0.0,2.0.0.369)`	affected	generic	—

Wso2

Open Banking Iam

Version	Status	Scheme	Platform
`[2.0.0,2.0.0.389)`	affected	generic	—

Wso2

Traffic Manager

Version	Status	Scheme	Platform
`[4.5.0,4.5.0.54)`	affected	generic	—
`[4.6.0,4.6.0.19)`	affected	generic	—

Wso2

Universal Gateway

Version	Status	Scheme	Platform
`[4.5.0,4.5.0.55)`	affected	generic	—
`[4.6.0,4.6.0.19)`	affected	generic	—

Wso2

Wso2 Carbon Oauth

Version	Status	Scheme	Platform
`[6.4.2,6.4.2.154)`	affected	generic	—
`[6.4.111,6.4.111.131)`	affected	generic	—
`[6.4.176,6.4.176.35)`	affected	generic	—
`[6.4.180,6.4.180.17)`	affected	generic	—
`[6.8.0,6.8.0.46)`	affected	generic	—
`[6.9.6,6.9.6.34)`	affected	generic	—
`[6.11.21,6.11.21.59)`	affected	generic	—
`[6.13.16,6.13.16.27)`	affected	generic	—
`[6.13.19,6.13.19.19)`	affected	generic	—
`[6.13.27,6.13.27.15)`	affected	generic	—
`[6.13.41,6.13.41.4)`	affected	generic	—
`[6.11.53,*]`	unaffected	generic	—

Remediation

Vendor Solution

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-2753/#solution

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.188% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-2753/

History

Aug 7, 2026 9:30 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Wso2 api Control Plane Wso2 api Manager Wso2 identity Server Wso2 identity Server As Key Manager Wso2 open Banking Am Wso2 open Banking Iam Wso2 traffic Manager Wso2 universal Gateway
Vendors & Products		Wso2 api Control Plane Wso2 api Manager Wso2 identity Server Wso2 identity Server As Key Manager Wso2 open Banking Am Wso2 open Banking Iam Wso2 traffic Manager Wso2 universal Gateway

Aug 6, 2026 2:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Aug 6, 2026 8:15 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Unused authorization codes issued to deleted users are not being properly invalidated or removed from the system. This allows for the persistence of these codes, enabling them to be potentially reused. If an attacker possesses both the authorization code and the associated client credentials (client ID and client secret), they can leverage these unused codes to obtain access tokens on behalf of users who have already been deleted. This may lead to unauthorized access to sensitive resources and services, contingent on the scopes originally authorized for the compromised authorization code.
Title		Authorization Code issued for Deleted User reuse in Multiple WSO2 Products Allows Unauthorized Access
First Time appeared		Wso2 Wso2 wso2 Api Control Plane Wso2 wso2 Api Manager Wso2 wso2 Carbon Oauth Wso2 wso2 Identity Server Wso2 wso2 Identity Server As Key Manager Wso2 wso2 Open Banking Am Wso2 wso2 Open Banking Iam Wso2 wso2 Traffic Manager Wso2 wso2 Universal Gateway
Weaknesses		CWE-613
CPEs		cpe:2.3:a:wso2:wso2_api_control_plane:::::::: cpe:2.3:a:wso2:wso2_api_manager:::::::: cpe:2.3:a:wso2:wso2_carbon_oauth:::::::: cpe:2.3:a:wso2:wso2_identity_server:::::::: cpe:2.3:a:wso2:wso2_identity_server_as_key_manager:::::::: cpe:2.3:a:wso2:wso2_open_banking_am:::::::: cpe:2.3:a:wso2:wso2_open_banking_iam:::::::: cpe:2.3:a:wso2:wso2_traffic_manager:::::::: cpe:2.3:a:wso2:wso2_universal_gateway::::::::
Vendors & Products		Wso2 Wso2 wso2 Api Control Plane Wso2 wso2 Api Manager Wso2 wso2 Carbon Oauth Wso2 wso2 Identity Server Wso2 wso2 Identity Server As Key Manager Wso2 wso2 Open Banking Am Wso2 wso2 Open Banking Iam Wso2 wso2 Traffic Manager Wso2 wso2 Universal Gateway
References		https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2024-2753/
Metrics		cvssV3_1 `{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N'}`

Subscriptions

Wso2 Api Control Plane Api Manager Identity Server Identity Server As Key Manager Open Banking Am Open Banking Iam Traffic Manager Universal Gateway Wso2 Api Control Plane Wso2 Api Manager Wso2 Carbon Oauth Wso2 Identity Server Wso2 Identity Server As Key Manager Wso2 Open Banking Am Wso2 Open Banking Iam Wso2 Traffic Manager Wso2 Universal Gateway

Weaknesses