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SyncopeApplication · Apache

CVE-2026-62418

HIGH · 8.1 CVSS v3.1 Published 2026-07-20
Fix available
A fix is available. Upgrade to 4.0.7 / 4.1.2 or later.
See remediation →
87/100
Remediation priority · High
Remotely reachable Zero-click 4 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Low-privileged authenticated Server-Side Request Forgery (SSRF) vulnerability in Apache Syncope via Connectors and Resources check. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Authenticated low-privileged SSRF in Apache Syncope's Connectors and Resources check allows attackers to induce the server to make arbitrary HTTP requests to internal or external resources, potentially accessing internal services, bypassing firewalls, or performing network reconnaissance.

MitigationUpgrade Apache Syncope to version 4.0.7 or 4.1.2 (or later) which contains the fix for this vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
SyncopeApplication
Affected:>= 3.0.0, <= 3.0.16>= 4.0.0, < 4.0.7>= 4.1.0, < 4.1.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Apache Syncope version
    Check the deployed WAR file name (e.g., syncope.war or syncope-3.x.x.war), or look for a version.properties file in the deployment directory, or check the startup logs for the version string
    Affected if Version is 3.0.0 through 3.0.16, 4.0.0 through 4.0.6, or 4.1.0 through 4.1.1
  2. Verify Connector endpoint accessibility
    Review the Apache Syncope administration console or API documentation to determine if low-privileged users (non-admin roles) have access to the /connector/{uid}/check endpoint or equivalent Connector management API
    Affected if Low-privileged users can invoke or access the Connector check functionality via REST API or UI
  3. Verify Resource endpoint accessibility
    Review user role configurations to determine if non-administrative users can access the /resource/{key}/check endpoint or equivalent Resource check functionality
    Affected if Low-privileged users can invoke or access the Resource check functionality via REST API or UI
  4. Confirm check feature is enabled
    Inspect the deployed web.xml or security configuration to verify that the Connector and Resource check endpoints are exposed and not explicitly disabled or restricted to admin-only roles
    Affected if The check endpoints are active and accessible to users with standard/low-privileged roles

You are affected if your Apache Syncope version falls within 3.0.0-3.0.16, 4.0.0-4.0.6, or 4.1.0-4.1.1 AND low-privileged users can access the Connector or Resource check functionality.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 4.0.7 / 4.1.2 or later
Fixed in 4.0.74.1.2
Interim mitigation

Upgrade Apache Syncope to version 4.0.7 or 4.1.2 (or later) which contains the fix for this vulnerability.

Recommended fix High confidence

4.0.7 or 4.1.2

  1. 1. Identify the current Apache Syncope version by checking the application or deployment configuration
  2. 2. Determine the appropriate upgrade target: upgrade to 4.0.7 if currently on 4.0.x series; upgrade to 4.1.2 if currently on 4.1.x series; if on 3.x, upgrade to either 4.0.7 or 4.1.2
  3. 3. Review the Apache Syncope upgrade documentation and release notes for migration considerations
  4. 4. Create a complete backup of the current installation including database, configuration files, and any custom deployments
  5. 5. Download Apache Syncope version 4.0.7 or 4.1.2 from the official Apache Syncope distribution repository (downloads.apache.org/syncope)
  6. 6. Stop the running Apache Syncope service
  7. 7. Install the new version following the standard deployment procedure
  8. 8. Verify the service starts successfully and all components initialize without errors
Caveat Review release notes for breaking changes between your current version and the target upgrade version; major version jumps (e.g., 3.x to 4.x) may require migration steps

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Syncope Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,380
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-62418 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data