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CVE-2025-57738· NVD / CVE Program· CNA apache

Apache Syncope: Remote Code Execution by delegated administrators

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.

HighCVSS 7.2 · v3.1—No exploit Fix available
Published
Oct 20, 2025
Updated
Jun 17, 2026
EPSS
23.2% · 98th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
28 / 40 · 7.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
7 / 30 · 23.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
apachesyncope

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apache syncope2.1.0 and later · before 3.0.14
  • apache syncope4.0.0 and later · before 4.0.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

  • Apache Software Foundation Apache Syncope

    • 2.1 and later · up to and including 2.1.14affected · semver
    • 3.0 and later · up to and including 3.0.13affected · semver
    • 4.0 and later · up to and including 4.0.1affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenorg.apache.syncope.core:syncope-core-springfrom 4.0.0-M0 · before 4.0.24.0.2
Mavenorg.apache.syncope.core:syncope-core-springbefore 3.0.143.0.14

Same product

apache: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-1961Vulnerability 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
    40Plan
  • CVE-2020-1959A Server-Side Template Injection was identified in Apache Syncope prior to 2.1.6 enabling attackers to inject arbitrary Java EL expressions,
    40Plan
  • CVE-2026-63071Apache Syncope: RCE via Groovy Sandbox bypass
    39Monitor
  • CVE-2026-62183Apache Syncope: User self-service privilege escalation
    39Monitor
  • CVE-2026-57308Apache Syncope: SQL injection vulnerability in Audit Events search
    39Monitor
  • CVE-2026-53421Apache Syncope: Remote Code Execution via Scripted Connector
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Apache Software Foundation Apache Syncope3.0.14 · descriptionVendor (CNA)
Maven:org.apache.syncope.core:syncope-core-spring3.0.14Package registry (OSV)
Maven:org.apache.syncope.core:syncope-core-spring4.0.2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-53405273 days apartApache Syncope: Remote Code Execution via Flowable BPMN Groovy ScriptTask
    39Monitor
  • CVE-2026-53421273 days apartApache Syncope: Remote Code Execution via Scripted Connector
    39Monitor
  • CVE-2026-63071273 days apartApache Syncope: RCE via Groovy Sandbox bypass
    39Monitor
  • CVE-2026-42782217 days apartApache Syncope: Post-auth RCE via Groovy static
    28Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-653 · Improper Isolation or Compartmentalization

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records