EUVD-2026-94225
GHSA-p473-xc22-vrvr
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Authenticated tenant so PR:L; network-reachable low-complexity traversal (AV:N/AC:L); reading provider-host files from tenant context crosses a trust boundary (S:C); confidentiality-only disclosure (C:H/I:N/A:N).
Primary rating from Vendor (hackerone).
CVSS VectorVendor: hackerone
Lifecycle Timeline
2DescriptionCVE.org
This vulnerability in Veeam Backup & Replication allows an authenticated Cloud Connect tenant to read arbitrary files on the service provider host.
AnalysisAI
Authenticated Cloud Connect tenants can read arbitrary files on the Veeam Backup & Replication service provider host through a path traversal flaw (CWE-22). This affects service providers that deploy the Cloud Connect feature and serve tenants; standalone installations without Cloud Connect are not reachable via this tenant path. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to be an authenticated Veeam Cloud Connect tenant (PR:L) on a service provider that has the Cloud Connect feature deployed and is serving tenants - this is the specific deployment mode that makes the flaw reachable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a credible, above-average priority for Veeam Cloud Connect service providers, though not a drop-everything emergency on current signals. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the fix from Veeam advisory KB4902 (https://www.veeam.com/kb4902) for Veeam Backup & Replication; if a patched build is listed, upgrade all Cloud Connect service provider nodes to that version. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Veeam Backup & Replication service provider hosts with Cloud Connect enabled, confirm which tenants can reach the Cloud Connect interface, restrict access to only trusted tenants or temporarily disable tenant-facing Cloud Connect where business tolerable, and review Veeam and host logs for anomalous file-read or path traversal patterns. …
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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