CVE-2025-13173

Improper Token Revocation via Session-Bound Token Flow in Multiple WSO2 Products Allows Unauthorized Access After Session Termination

View on CVE.org

Published Oct 19, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Description

Tokens associated with user sessions are not revoked when the corresponding user session is terminated, unless another SSO request is initiated. This occurs when the session-bound token feature is enabled with token binding validation and the "Revoke token upon user logout" option is not active. The software fails to automatically invalidate session-bound tokens upon user session termination.

This vulnerability exists when token binding validation is enabled. As a result, a malicious actor possessing a valid session-bound token could exploit this condition to maintain unauthorized access to applications and resources even after the associated user session has ended, potentially leading to the exposure of sensitive user data.

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 Control Plane

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.47
`4.6.0`	affected	< 4.6.0.13

WSO2

WSO2 Universal Gateway

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.46
`4.6.0`	affected	< 4.6.0.11

WSO2

WSO2 API Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 3.1.0
`3.1.0`	affected	< 3.1.0.352
`3.2.0`	affected	< 3.2.0.456
`3.2.1`	affected	< 3.2.1.81
`4.0.0`	affected	< 4.0.0.376
`4.1.0`	affected	< 4.1.0.246
`4.2.0`	affected	< 4.2.0.186
`4.3.0`	affected	< 4.3.0.97
`4.4.0`	affected	< 4.4.0.61
`4.5.0`	affected	< 4.5.0.46
`4.6.0`	affected	< 4.6.0.11

WSO2

WSO2 Traffic Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.45
`4.6.0`	affected	< 4.6.0.11

WSO2

WSO2 Identity Server as Key Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 5.10.0
`5.10.0`	affected	< 5.10.0.372

WSO2

WSO2 Open Banking IAM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.421

WSO2

WSO2 Open Banking AM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.401

WSO2

WSO2 Identity Server

unaffected

Version	Status	Constraints
`0`	unknown	< 5.10.0
`5.10.0`	affected	< 5.10.0.381
`5.11.0`	affected	< 5.11.0.428
`6.0.0`	affected	< 6.0.0.255
`6.1.0`	affected	< 6.1.0.256
`7.0.0`	affected	< 7.0.0.133
`7.1.0`	affected	< 7.1.0.41
`7.2.0`	affected	< 7.2.0.3

WSO2

WSO2 Carbon OAuth

unknown

Version	Status	Constraints
`6.4.2`	affected	< 6.4.2.171
`6.4.111`	affected	< 6.4.111.165
`6.4.176`	affected	< 6.4.176.30
`6.4.180`	affected	< 6.4.180.14
`6.8.0`	affected	< 6.8.0.54
`6.9.6`	affected	< 6.9.6.29
`6.11.21`	affected	< 6.11.21.94
`6.13.16`	affected	< 6.13.16.21
`6.13.19`	affected	< 6.13.19.14
`6.13.27`	affected	< 6.13.27.10
`6.13.41`	affected	< 6.13.41.1
`7.0.26`	affected	< 7.0.26.87
`7.0.259`	affected	< 7.0.259.34
`7.0.385`	affected	< 7.0.385.3

No data.

Vendor Product Versions

Wso2

Identity Server

Version	Status	Scheme	Platform
`[5.10.0,5.10.0.381)`	affected	generic	—
`[5.11.0,5.11.0.428)`	affected	generic	—
`[6.0.0,6.0.0.255)`	affected	generic	—
`[6.1.0,6.1.0.256)`	affected	generic	—
`[7.0.0,7.0.0.133)`	affected	generic	—
`[7.1.0,7.1.0.41)`	affected	generic	—
`[7.2.0,7.2.0.3)`	affected	generic	—

Wso2

Wso2 Api Control Plane

Version	Status	Scheme	Platform
`[4.5.0,4.5.0.47)`	affected	generic	—
`[4.6.0,4.6.0.13)`	affected	generic	—

Wso2

Wso2 Api Manager

Version	Status	Scheme	Platform
`[3.1.0,3.1.0.352)`	affected	generic	—
`[3.2.0,3.2.0.456)`	affected	generic	—
`[3.2.1,3.2.1.81)`	affected	generic	—
`[4.0.0,4.0.0.376)`	affected	generic	—
`[4.1.0,4.1.0.246)`	affected	generic	—
`[4.2.0,4.2.0.186)`	affected	generic	—
`[4.3.0,4.3.0.97)`	affected	generic	—
`[4.4.0,4.4.0.61)`	affected	generic	—
`[4.5.0,4.5.0.46)`	affected	generic	—
`[4.6.0,4.6.0.11)`	affected	generic	—

Wso2

Wso2 Carbon Oauth

Version	Status	Scheme	Platform
`[6.4.2,6.4.2.171)`	affected	generic	—
`[6.4.111,6.4.111.165)`	affected	generic	—
`[6.4.176,6.4.176.30)`	affected	generic	—
`[6.4.180,6.4.180.14)`	affected	generic	—
`[6.8.0,6.8.0.54)`	affected	generic	—
`[6.9.6,6.9.6.29)`	affected	generic	—
`[6.11.21,6.11.21.94)`	affected	generic	—
`[6.13.16,6.13.16.21)`	affected	generic	—
`[6.13.19,6.13.19.14)`	affected	generic	—
`[6.13.27,6.13.27.10)`	affected	generic	—
`[6.13.41,6.13.41.1)`	affected	generic	—
`[7.0.26,7.0.26.87)`	affected	generic	—
`[7.0.259,7.0.259.34)`	affected	generic	—
`[7.0.385,7.0.385.3)`	affected	generic	—

Wso2

Wso2 Identity Server

Version	Status	Scheme	Platform
`[5.10.0,5.10.0.381)`	affected	generic	—
`[5.11.0,5.11.0.428)`	affected	generic	—
`[6.0.0,6.0.0.255)`	affected	generic	—
`[6.1.0,6.1.0.256)`	affected	generic	—
`[7.0.0,7.0.0.133)`	affected	generic	—
`[7.1.0,7.1.0.41)`	affected	generic	—
`[7.2.0,7.2.0.3)`	affected	generic	—

Wso2

Wso2 Identity Server As Key Manager

Version	Status	Scheme	Platform
`[5.10.0,5.10.0.372)`	affected	generic	—

Wso2

Wso2 Open Banking Am

Version	Status	Scheme	Platform
`[2.0.0,2.0.0.401)`	affected	generic	—

Wso2

Wso2 Open Banking Iam

Version	Status	Scheme	Platform
`[2.0.0,2.0.0.421)`	affected	generic	—

Wso2

Wso2 Traffic Manager

Version	Status	Scheme	Platform
`[4.5.0,4.5.0.45)`	affected	generic	—
`[4.6.0,4.6.0.11)`	affected	generic	—

Wso2

Wso2 Universal Gateway

Version	Status	Scheme	Platform
`[4.5.0,4.5.0.46)`	affected	generic	—
`[4.6.0,4.6.0.11)`	affected	generic	—

Remediation

Vendor Solution

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4727/#solution

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.194% 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/WSO2-2025-4727/

History

Oct 21, 2026 2:30 AM Scoring metrics updated View changes

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

Oct 19, 2026 9:00 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Wso2 identity Server
Vendors & Products		Wso2 identity Server

Oct 19, 2026 5:00 PM 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		Tokens associated with user sessions are not revoked when the corresponding user session is terminated, unless another SSO request is initiated. This occurs when the session-bound token feature is enabled with token binding validation and the "Revoke token upon user logout" option is not active. The software fails to automatically invalidate session-bound tokens upon user session termination. This vulnerability exists when token binding validation is enabled. As a result, a malicious actor possessing a valid session-bound token could exploit this condition to maintain unauthorized access to applications and resources even after the associated user session has ended, potentially leading to the exposure of sensitive user data.
Title		Improper Token Revocation via Session-Bound Token Flow in Multiple WSO2 Products Allows Unauthorized Access After Session Termination
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/WSO2-2025-4727/
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L'}`

Subscriptions

Wso2 Identity Server 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