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
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. There is no public exploit identified at time of analysis, and CISA SSVC scores exploitation as 'none,' but the total technical impact and low privilege bar make this a meaningful internal-network exposure.
Technical ContextAI
Apache Syncope is an open-source identity governance and provisioning platform (IdM/IGA) that manages users, groups, and their propagation to external systems through 'Connectors' (ConnId bundles) and 'Resources.' When an administrator or delegated operator defines or validates a connector/resource, Syncope performs a connectivity 'check' against the target endpoint supplied in the configuration. CWE-918 (Server-Side Request Forgery) is the root-cause class: the server takes an attacker-influenceable destination and initiates a request to it without adequately restricting the target, so the attacker borrows the server's network position. The single CPE (cpe:2.3:a:apache_software_foundation:apache_syncope) confirms the affected artifact is the core Syncope application across all packaging.
RemediationAI
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). Until patched, restrict who can create or run connector/resource connectivity checks by tightening Syncope entitlements so only fully trusted administrators hold connector/resource management rights (side effect: reduces delegated-admin flexibility), and place the Syncope core behind egress filtering that limits outbound connections from the application host to only the known, legitimate target systems it must reach (side effect: any new legitimate connector target must be explicitly allowlisted). Network-segmenting the Syncope host away from sensitive internal metadata/management endpoints further blunts SSRF value.
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External POC / Exploit Code
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