CVE-2026-42797 json
Apache Syncope: JexlContextBuilder Information Disclosure
published 2026-05-25 5 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-31702 , GHSA-vr35-jm2f-8wg2
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 38%
- public exploits
- 0
- none known
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 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.
Patch / fix
- maven org.apache.syncope.core:syncope-core-provisioning-api 4.0.6, 4.1.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5 mo ago
Exploit prediction
0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.syncope.core:syncope-core-provisioning-api | >=3.0.0-M0, <=3.0.16 >=4.0.0-M0, <4.0.6 >=4.1.0-M0, <4.1.1 |
4.0.6 4.1.1 |
Affected products
- Apache Software Foundation Apache Syncope
Classification
- Weakness
-
- CWE-202 Exposure of Sensitive Information Through Data Queries
References
-
lists.apache.org
/thread/5y7d277sntyytrmxnx2tfjr9ftcpq1s6
vendor-advisory, web, mailing-list
-
openwall.com
/lists/oss-security/2026/05/25/5
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-42797
advisory
-
github.com
/apache/syncope
package
Sources
- CVE List CVE-2026-42797
- GitHub Advisory GHSA-vr35-jm2f-8wg2
- NVD CVE-2026-42797
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.