What is CVE-2026-42797?

CVE-2026-42797 is a medium-severity vulnerability in Apache Syncope, classified under CWE-202. CVSS score: 4.9/10. Published 2026-05-25.

How severe is CVE-2026-42797?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Apache Syncope

CVE-2026-42797

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…

EPSS: 0.001 (19.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apache Syncope — versions 4.1.0
Apache Software Foundation Syncope — versions 3.0, 4.0, 4.1

Weakness classification (CWE)

CWE-202

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-42797?: CVE-2026-42797 is a medium-severity vulnerability in Apache Syncope, classified under CWE-202. CVSS score: 4.9/10. Published 2026-05-25.
How severe is CVE-2026-42797?: Medium severity. CVSS v3 base score is 4.9 out of 10.