CVE-2026-107242

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107242
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-10 01:17:12 UTC
Updated2026-11-10 01:17:12 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: CWE-340 | CWE-340 CWE-340 Generation of Predictable Numbers or Identifiers

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Versa VOS affected 21.1.1 21.2.3 semver Not specified
CNA Versa VOS affected 22.1.2 July 2, 2026 semver Not specified
CNA Versa VOS affected 22.1.3 July 2, 2026 semver Not specified
CNA Versa VOS affected 22.1.4 July 2, 2026 semver Not specified
CNA Versa VOS affected 23.1.2 Aug 3, 2026 semver Not specified
CNA Versa VOS unaffected 22.1.2 July-2-2026-Hotfix 22.1.2 July-2-2026-Hotfix semver Not specified
CNA Versa VOS unaffected 22.1.3 July-2-2026-Hotfix 22.1.3 July-2-2026-Hotfix semver Not specified
CNA Versa VOS unaffected 22.1.4 July-2-2026-Hotfix 22.1.4 July-2-2026-Hotfix semver Not specified
CNA Versa VOS unaffected 23.1.2 Aug-3-2026-Hotfix 23.1.2 Aug-3-2026-Hotfix semver Not specified

References

ReferenceSourceLinkTags
security-portal.versa-networks.com/emailbulletins/6af22a90dd1c93ddc0a3e836 [email protected] security-portal.versa-networks.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: NCSC Netherlands (en)

Additional Advisory Data

Workarounds

CNA: 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

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