Versa’s security hardening guide for Hubs, Branches, and Controllers recommends disabling the Node.js web service after the initial provisioning of the VOS device. This vulnerability is not exploitable on VOS devices where the Node.js web service has been disabled.
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Versa | VOS | affected |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Versa | Vos | 100% |
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Vendor Workaround
The mitigation is to disable the Nodejs web service on the VOS. Instructions to disable the Nodejs web service are available on the Versa documentation page at the below link: https://docs.versa-networks.com/Integrations_and_Solutions/System_Hardening/Perform_Manual_Hardening_for_Versa_Branches%2C_Controllers%2C_and_Hubs#Enable_Secure_Mode
Tracking
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Tue, 10 Nov 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Versa
Versa vos |
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| Vendors & Products |
Versa
Versa vos |
Tue, 10 Nov 2026 08:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Predictable Session ID Generation in Versa VOS Node.js Web Service Enables Session Hijacking |
Tue, 10 Nov 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Node.js web service on VOS (previously Versa FlexVNF) is used for URL-based Zero Touch Provisioning (ZTP) of the VOS appliance and is not required after provisioning is complete. This service generates session identifiers using UUID version 1 (UUIDv1), which is derived from the system’s date and time and its MAC address. As a result, successive identifiers differ only slightly and can be predicted. An attacker who can predict a user’s session ID could hijack that user’s session. Versa’s security hardening guide for Hubs, Branches, and Controllers recommends disabling the Node.js web service after the initial provisioning of the VOS device. This vulnerability is not exploitable on VOS devices where the Node.js web service has been disabled. | |
| Weaknesses | CWE-340 | |
| References |
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MITRE
Status: PUBLISHED
Assigner: hackerone
Published:
Updated: 2026-11-10T00:32:37.037Z
Reserved: 2026-10-07T15:00:00.550Z
Link: CVE-2026-107242
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-11-10T01:17:12.337
Modified: 2026-11-10T01:17:12.337
Link: CVE-2026-107242
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-11-10T09:28:14Z