Sensitive Data Exposure via URL Parameters in Multiple WSO2 Products Allows Confidential Information Leakage

Summary

The product failed to enforce validation constraints on user-supplied input in URL parameters, allowing sensitive data to be passed to flows where it was not intended to be processed. Although the product did not utilize this data, its acceptance could lead to logging. If a user mistakenly sends sensitive data via URL parameters to any flow, this data could be inadvertently logged in access logs. This has the potential to expose confidential information, compromising the security and privacy of affected systems if the product is used incorrectly.

Timeline

1. Oct 21, 2026, 1:56 PM UTCCVE published
2. Oct 21, 2026, 1:59 PM UTCRecord last updated
3. Oct 22, 2026, 6:59 AM UTCFirst seen by cve.now

Affected versions

• WSO2 WSO2 API Manager

  From 3.1.0 · fixed in 3.1.0.313; From 3.2.0 · fixed in 3.2.0.406; From 3.2.1 · fixed in 3.2.1.30; From 4.0.0 · fixed in 4.0.0.324; From 4.1.0 · fixed in 4.1.0.185; From 4.2.0 · fixed in 4.2.0.124; From 4.3.0 · fixed in 4.3.0.36; From 4.4.0 · fixed in 4.4.0.2

• WSO2 WSO2 Open Banking AM

  From 2.0.0 · fixed in 2.0.0.363

• WSO2 WSO2 Identity Server

  From 5.10.0 · fixed in 5.10.0.337; From 5.11.0 · fixed in 5.11.0.384; From 6.0.0 · fixed in 6.0.0.213; From 6.1.0 · fixed in 6.1.0.211; From 7.0.0 · fixed in 7.0.0.50

• WSO2 WSO2 Identity Server as Key Manager

  From 5.10.0 · fixed in 5.10.0.329

• WSO2 WSO2 Open Banking IAM

  From 2.0.0 · fixed in 2.0.0.381

• org.wso2.carbon.identity.application.authenticator.basicauth

  From 6.3.0 · fixed in 6.3.0.18; From 6.3.11 · fixed in 6.3.11.23; From 6.3.58 · fixed in 6.3.58.1; From 6.5.0 · fixed in 6.5.0.5; From 6.6.0 · fixed in 6.6.0.1; From 6.7.8 · fixed in 6.7.8.4; From 6.7.32 · fixed in 6.7.32.1

• org.wso2.carbon.identity.core

  From 5.17.5 · fixed in 5.17.5.286; From 5.17.118 · fixed in 5.17.118.11; From 5.18.187 · fixed in 5.18.187.263; From 5.18.248 · fixed in 5.18.248.23; From 5.23.8 · fixed in 5.23.8.189; From 5.24.8 · fixed in 5.24.8.12; From 5.25.92 · fixed in 5.25.92.91; From 5.25.92 · fixed in 5.25.92.118; From 5.25.705 · fixed in 5.25.705.11; From 5.25.713 · fixed in 5.25.713.2; From 7.0.78 · fixed in 7.0.78.27

• org.wso2.carbon.identity.oauth.common

  From 6.4.2 · fixed in 6.4.2.142; From 6.4.176 · fixed in 6.4.176.20; From 6.4.180 · fixed in 6.4.180.8; From 6.8.0 · fixed in 6.8.0.40; From 6.9.6 · fixed in 6.9.6.16; From 6.11.21 · fixed in 6.11.21.44; From 6.13.16 · fixed in 6.13.16.6; From 6.13.19 · fixed in 6.13.19.2; From 7.0.26 · fixed in 7.0.26.18

References 1