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Vulnerability record · CVE-2025-57738 · published 20 October 2025

CVE-2025-57738: Apache syncope vulnerability

Apache · Syncope

Apache Syncope offers the ability to extend / customize the base behavior on every deployment by allowing to provide custom implementations of a few Java interfaces; such implementations can be provided either as Java or Groovy classes, with the latter being particularly attractive as the machinery is set for runtime reload. Such a feature has been available for a while, but recently it was discovered that a malicious administrator can inject Groovy code that can be executed remotely by a running Apache Syncope Core instance. Users are recommended to upgrade to version 3.0.14 / 4.0.2, which fix this issue by forcing the Groovy code to run in a sandbox.

7.2 CVSS 3.1 High EPSS 23% · top 2.3% CWE-653 · CWE-653
7.2CVSS 3.1 base score
23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Apache Syncope offers the ability to extend / customize the base behavior on every deployment by allowing to provide custom implementations of a few Java interfaces; such implementations can be provided either as Java or Groovy classes, with the latter being particularly attractive as the machinery is set for runtime reload. Such a feature has been available for a while, but recently it was discovered that a malicious administrator can inject Groovy code that can be executed remotely by a running Apache Syncope Core instance. Users are recommended to upgrade to version 3.0.14 / 4.0.2, which fix this issue by forcing the Groovy code to run in a sandbox.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/x7cv6xv7z76y49grdr1hgj1pzw5zbby6 Mailing ListRelease Notes
http://www.openwall.com/lists/oss-security/2025/10/20/1

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-63071Apache syncope vulnerabilityImproper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements for Implementations can creat…EPSS 0.75%9.8CVE-2026-57308Apache syncope sql injection vulnerabilityImproper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Syncope. An administrator with adequate …EPSS 0.83%9.8CVE-2026-62183Apache syncope improper privilege management vulnerabilityImproper Privilege Management vulnerability in Apache Syncope. When: * the all-Java user workflow adapter is configured, or * the Flowable user workf…EPSS 0.69%9.8CVE-2026-53421Apache syncope vulnerabilityImproper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements can achieve remote code execu…EPSS 1.1%9.8CVE-2026-53405Apache syncope vulnerabilityImproper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements can import arbitrary BPMN pro…EPSS 0.75%9.8CVE-2020-1961Apache syncope injection vulnerabilityVulnerability to Server-Side Template Injection on Mail templates for Apache Syncope 2.0.X releases prior to 2.0.15, 2.1.X releases prior to 2.1.6, e…EPSS 4.8%9.8CVE-2020-1959Apache syncope expression language injection vulnerabilityA Server-Side Template Injection was identified in Apache Syncope prior to 2.1.6 enabling attackers to inject arbitrary Java EL expressions, leading …EPSS 5.0%8.1CVE-2026-62418Apache syncope server-side request forgery (ssrf) vulnerabilityLow-privileged authenticated Server-Side Request Forgery (SSRF) vulnerability in Apache Syncope via Connectors and Resources check. This issue affect…EPSS 0.47%

Source: NIST National Vulnerability Database (record CVE-2025-57738), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.