CVE-2026-77883: CWE-202 Exposure of sensitive information through data queries in Apache Software Foundation Apache Syncope
Exposure of sensitive information through data queries vulnerability in Apache Syncope. An administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access LinkedAccount's (if present) or Manager's (if defined) sensitive information, possibly including hashed credentials. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.
AI Analysis
Technical Summary
CVE-2026-77883 is a vulnerability in Apache Syncope that allows exposure of sensitive information via crafted JEXL expressions in Derived Schemas. An administrator with appropriate entitlements can create malicious expressions that permit other administrators with User read permissions to access sensitive information from LinkedAccount or Manager entities, which may include hashed credentials. This 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 fixed in versions 4.0.8 and 4.1.3.
Potential Impact
The vulnerability allows unauthorized access to sensitive information, including potentially hashed credentials, by exploiting the ability to create malicious JEXL expressions in Derived Schemas. This could lead to exposure of confidential data to administrators who should not have access to such information.
Mitigation Recommendations
Users should upgrade Apache Syncope to versions 4.0.8 or 4.1.3, which contain fixes for this vulnerability. Applying these official fixes will prevent exploitation of the described issue.
CVE-2026-77883: CWE-202 Exposure of sensitive information through data queries in Apache Software Foundation Apache Syncope
Description
Exposure of sensitive information through data queries vulnerability in Apache Syncope. An administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access LinkedAccount's (if present) or Manager's (if defined) sensitive information, possibly including hashed credentials. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2. Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.
CVSS v3.1
Score 4.9medium
Affected software
Apache Software Foundation
Apache Syncope
pkg:maven/Apache Software Foundation/org.apache.syncope.core:syncope-core-provisioning-apiRun 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-2026-77883 is a vulnerability in Apache Syncope that allows exposure of sensitive information via crafted JEXL expressions in Derived Schemas. An administrator with appropriate entitlements can create malicious expressions that permit other administrators with User read permissions to access sensitive information from LinkedAccount or Manager entities, which may include hashed credentials. This 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 fixed in versions 4.0.8 and 4.1.3.
Potential Impact
The vulnerability allows unauthorized access to sensitive information, including potentially hashed credentials, by exploiting the ability to create malicious JEXL expressions in Derived Schemas. This could lead to exposure of confidential data to administrators who should not have access to such information.
Mitigation Recommendations
Users should upgrade Apache Syncope to versions 4.0.8 or 4.1.3, which contain fixes for this vulnerability. Applying these official fixes will prevent exploitation of the described issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-21T16:15:31.747Z
- State
- PUBLISHED
Threat ID: 6aa7ecfc55bf5e2cf5128798
Added to database: 09/14/2026, 12:47:56 UTC
Last enriched: 09/14/2026, 13:02:08 UTC
Last updated: 09/15/2026, 16:01:23 UTC
Views: 20
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