# CVE-2026-77883

## Summary

- **CVE ID:** CVE-2026-77883
- **Severity:** MEDIUM
- **CVSS Score:** 4.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-202
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 14, 2026

## 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.

## Affected Products

- Apache Software Foundation — Apache Syncope (3.0.0-M0)
- Apache Software Foundation — Apache Syncope (4.0.0-M0)
- Apache Software Foundation — Apache Syncope (4.1.0-M0)

## References

- [CNA](https://lists.apache.org/thread/oshwdz2k4cl3042y39zq0yl4qkxbd83p)
- [CVE](http://www.openwall.com/lists/oss-security/2026/09/14/17)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.38%
- **EPSS Percentile:** 31.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._