CVE-2024-1524: WSO2 API Manager · Authentication Bypass by Spoofing
Affects WSO2 API ManagerSource CVE Database V5
Not known to be exploited · CVSS 7.7 High : upgrade to 4.2.0.108 soon.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.2.0.108, 6.1.0.128, 6.0.0.171
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:LExploitation evidence
Disclosed: evidence found.
CVE published 24 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 29 Oct 2026.
What to do
Upgrade WSO2 to 4.2.0.108 (API Manager); 6.1.0.128 or 6.0.0.171 (Identity Server).
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| WSO2WSO2 API Manager | Affected
| Fixed in
|
| WSO2WSO2 Identity Server | Affected
| Fixed in
|
| WSO2WSO2 Identity Server | Affected
| Fixed in
|
Mavenorg.wso2/carbon-apimgtpkg:maven/org.wso2/carbon-apimgtOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
To mitigate this vulnerability, organizations should first assess whether Silent Just-In-Time Provisioning is enabled for federated IDPs in their WSO2 API Manager deployments. If enabled, consider disabling this feature temporarily until a vendor patch is available. Implement strict username uniqueness policies across local and federated user stores to prevent username collisions. Employ monitoring and alerting for unusual provisioning activities or account changes. Use strong identity governance and access management controls to detect and block suspicious federated account creations matching local usernames. Additionally, restrict knowledge of valid local usernames by limiting information disclosure through error messages or user enumeration vectors. Engage with WSO2 for updates and patches addressing this issue and apply them promptly once released. Consider multi-factor authentication and additional verification steps for federated users to reduce risk. Finally, conduct regular security audits and penetration testing focusing on federated authentication flows.
Description
When the "Silent Just-In-Time Provisioning" feature is enabled for a federated identity provider (IDP) there is a risk that a local user store user's information may be replaced during the account provisioning process in cases where federated users share the same username as local users. There will be no impact on your deployment if any of the preconditions mentioned below are not met. Only when all the preconditions mentioned below are fulfilled could a malicious actor associate a targeted local user account with a federated IDP user account that they control. The Deployment should have: -An IDP configured for federated authentication with Silent JIT provisioning enabled. The malicious actor should have: -A fresh valid user account in the federated IDP that has not been used earlier. -Knowledge of the username of a valid user in the local IDP. -An account at the federated IDP matching the targeted local username.