CVE-2026-77883

Medium

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.

SeverityMedium
CVSS4.9
Exploit probability—
ProductApache Syncope
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-202CWE-202

How to fix

Affected products

ProductAffected versionsFixed in
Apache Software Foundation Apache Syncope3.0.0-M0 ≤ v ≤ 3.0.16, 4.0.0-M0 ≤ v ≤ 4.0.7, 4.1.0-M0 ≤ v ≤ 4.1.2—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.