CVE-2026-78336: CWE-201 Insertion of sensitive information into sent data in Apache Software Foundation Apache Syncope
Apache Syncope contains a vulnerability where authenticated users can retrieve sensitive configuration data, including client secrets for OIDC providers, regardless of their entitlements. This affects versions from 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2. Upgrading to versions 4.0.8 or 4.1.3 resolves the issue.
AI Analysis
Technical Summary
CVE-2026-78336 is an insertion of sensitive information into sent data vulnerability (CWE-201) in Apache Syncope. Authenticated users querying the list of configured OIDC providers for SSO via Console and Enduser interfaces receive a payload containing all configuration details, including client secrets, without entitlement checks. This exposure affects Apache Syncope versions >=3.0.0-M0 <=3.0.16, >=4.0.0-M0 <=4.0.7, and >=4.1.0-M0 <=4.1.2. The issue is addressed in versions 4.0.8 and 4.1.3.
Potential Impact
Any authenticated user can access sensitive configuration information, including client secrets for OIDC providers, which could lead to unauthorized access or misuse of authentication mechanisms. The exposure is due to lack of entitlement checks when returning configuration data.
Mitigation Recommendations
Users should upgrade Apache Syncope to version 4.0.8 or 4.1.3, where this vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
CVE-2026-78336: CWE-201 Insertion of sensitive information into sent data in Apache Software Foundation Apache Syncope
Description
Apache Syncope contains a vulnerability where authenticated users can retrieve sensitive configuration data, including client secrets for OIDC providers, regardless of their entitlements. This affects versions from 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2. Upgrading to versions 4.0.8 or 4.1.3 resolves the issue.
Affected software
Apache Software Foundation
Apache Syncope
pkg:maven/Apache Software Foundation/org.apache.syncope.ext.oidcc4ui:syncope-ext-oidcc4ui-logicRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-78336 is an insertion of sensitive information into sent data vulnerability (CWE-201) in Apache Syncope. Authenticated users querying the list of configured OIDC providers for SSO via Console and Enduser interfaces receive a payload containing all configuration details, including client secrets, without entitlement checks. This exposure affects Apache Syncope versions >=3.0.0-M0 <=3.0.16, >=4.0.0-M0 <=4.0.7, and >=4.1.0-M0 <=4.1.2. The issue is addressed in versions 4.0.8 and 4.1.3.
Potential Impact
Any authenticated user can access sensitive configuration information, including client secrets for OIDC providers, which could lead to unauthorized access or misuse of authentication mechanisms. The exposure is due to lack of entitlement checks when returning configuration data.
Mitigation Recommendations
Users should upgrade Apache Syncope to version 4.0.8 or 4.1.3, where this vulnerability is fixed. No other mitigation is indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-24T10:16:14.145Z
- State
- PUBLISHED
Threat ID: 6aa7ecfc55bf5e2cf512879b
Added to database: 09/14/2026, 12:47:56 UTC
Last enriched: 09/14/2026, 13:01:39 UTC
Last updated: 09/14/2026, 13:12:43 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.