EUVD-2026-45964
GHSA-9mhg-5crv-x4qr
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Network-reachable authenticated SSRF (AV:N/PR:L/AC:L); confidentiality high from internal reads, but integrity only Low since pure SSRF rarely grants full write, and availability unaffected.
Primary rating from Vendor (apache).
CVSS VectorVendor: apache
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
Server-Side Request Forgery in Apache Syncope lets a low-privileged authenticated user abuse the Connectors and Resources connectivity check to coerce the server into issuing arbitrary outbound requests. Affected builds span the 3.0.x, 4.0.x, and 4.1.x lines up to 3.0.16, 4.0.6, and 4.1.1 respectively, with high confidentiality and integrity impact per the CVSS 8.1 rating. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated account per the CVSS vector (PR:L - a low-privileged but non-anonymous user), and the specific trigger is the Connectors and Resources connectivity 'check' feature: the attacker must be able to invoke that check and control the destination endpoint it targets. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are moderately consistent but not alarming. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who holds a low-privileged authenticated Syncope account (or phishes/compromises a delegated operator) navigates to the connector or resource configuration and points the connectivity check at an internal-only address such as a cloud metadata service or an internal admin API. Syncope, running with the server's network trust, issues the request and returns or acts on the response, letting the attacker reach systems they could not otherwise touch from their own vantage. … |
| Remediation | Vendor-released patch: upgrade to Apache Syncope 4.0.7 or 4.1.2, which fix this issue; the 3.0.x line has no fixed version cited in the provided data, so 3.0.x operators should plan a migration to a patched 4.0.7/4.1.2 build and confirm 3.0.x guidance directly with the Apache advisory (https://lists.apache.org/thread/n632drbsmfr6t3p6jt6jwbjvokqdyszb). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: audit all Apache Syncope deployments and identify which low-privileged accounts have access to Connectors and Resources connectivity-check functionality; restrict or disable access where operationally feasible. …
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External POC / Exploit Code
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