Exposure of Sensitive Information Through Data Queries vulnerability in Apache Syncope. An...

CVE-2026-42797 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

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 User-related security-sensitive information.

This issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0.

Users are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by further restricting the JEXL expression definition.

Basic information

Type
unreviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Not specified
Published (advisory)
2026-05-26 13:30:46 UTC
Updated
2026-05-26 21:32:51 UTC
NVD published
2026-05-25 16:16:20 UTC

EPSS Score

Score Percentile
0.03% 7.76%

CVSS Scores

Base score Version Severity Vector
4.9 3.1 —
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-vr35-jm2f-8wg2 ↗
CVE CVE-2026-42797 ↗

CWEs

CWE id Name
CWE-202 Exposure of Sensitive Information Through Data Queries

References

cvelogic Threat Intelligence