CVE-2026-6647: WSO2 Identity Server · Insufficient Session Expiration
Affects WSO2 Identity ServerSource CVE Database V5
Not known to be exploited · CVSS 7.4 High : upgrade to 7.2.0.21 soon.
Data as of 28 Oct 2026, 20:41 UTC
- Patch
- Available – fixed in 7.2.0.21, 7.0.385.17
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade WSO2 to 7.2.0.21 (Identity Server) or 7.0.385.17 (Carbon OAuth).
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| WSO2WSO2 Identity Server | Affected
| Fixed in
|
| WSO2 Carbon OAuthorg.wso2.carbon.identity.inbound.auth.oauth2:org.wso2.carbon.identity.oauth | Affected
| Fixed in
|
AI-suggested
Upgrade WSO2 Identity Server to version 7.2.0.21 or later, or 7.0.385.17 or later, where this issue is fixed. No other mitigation is indicated by the vendor advisory.
Description
CVE-2026-6647 is a vulnerability in WSO2 Identity Server where inconsistent case handling between a case-insensitive user store and a case-sensitive identity database causes OAuth token revocation failures. Tokens associated with mixed-case usernames may not be properly revoked, allowing continued unauthorized use until token expiry. This affects versions >=7.2.0 <7.2.0.21 and >=7.0.385 <7.0.385.17. A fix is available in versions 7.2.0.21 and 7.0.385.17.