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CVE-2026-427974.9MediumCWE-202

CVE-2026-42797: Apache Syncope: JexlContextBuilder Information Disclosure

Apache Software Foundation · Apache Syncope

Vendor fix available · Affected: Apache Software Foundation Apache Syncope · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.4%probability of exploitation in the next 30 days
38th percentile
050100

Higher than 38% of scored CVEs

4.9MediumCVSS 3.1
LowMedium

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Apache Software Foundation · Apache Syncopefrom 3.0 up to and including 3.0.16; from 4.0 up to and including 4.0.5; from 4.1 up to and including 4.1.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Published
May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-42797 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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