---
id: CVE-2026-77883
title: >-
  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 sufficien…
summary: >-
  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 sufficien…
severity: medium
cvss: 4.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-202
vendor: Apache Software Foundation
product: 'org.apache.syncope.core:syncope-core-provisioning-api'
affected:
  - 'org.apache.syncope.core:syncope-core-provisioning-api >= 3.0.0-M0 <= 3.0.16'
  - 'org.apache.syncope.core:syncope-core-provisioning-api >= 4.0.0-M0 <= 4.0.7'
  - 'org.apache.syncope.core:syncope-core-provisioning-api >= 4.1.0-M0 <= 4.1.2'
published: '2026-09-14'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:58:48.430'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77883'
references:
  - url: 'https://lists.apache.org/thread/oshwdz2k4cl3042y39zq0yl4qkxbd83p'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/14/17'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T19:15:58.821229Z'
ingestedAt: '2026-09-14T15:23:07.432Z'
epss: 0.00375
epssPercentile: 0.31241
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.