4.9

CVE-2026-42797: apache software foundation apache syncope

CVSS: 4.9v3.1MediumAnalyzed
AliasesGHSA-vr35-jm2f-8wg2
Published 25-05-2026Last modified 26-05-2026
Open JSON

Vulnerability summary

CVE-2026-42797 is a medium (CVSS 4.9) vulnerability in apache software foundation apache syncope. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.6% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
4.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.56%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-05-2026
    PublishedVulnerability first disclosed.
  2. 26-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

+0.13 pp

From 0.44% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.56%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
  • syncope≥ 3.0.0, ≤ 3.0.16 | ≥ 4.0.0, < 4.0.6 | 4.1.0
Apache software foundation1 product
  • apache syncope≥ 3.0, ≤ 3.0.16 | ≥ 4.0, ≤ 4.0.5 | ≥ 4.1, ≤ 4.1.0
Org.apache.syncope.core1 product
  • 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

3 vendors · 3 products

References

4 links