# CVE-2026-40463: WaveSuite insufficient role-based access control in CPB Log Files

Source: https://junglewise.ai/threats/cve-2026-40463-wavesuite-insufficient-role-based-access-control-in-cpb-log-files  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-31. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-40463 · Severity: high · CVSS 7.6 · Published 2026-08-31

WaveSuite is a system management platform used to administer network infrastructure and services. A flaw in the CPB Log Files feature allows low-privilege users to bypass access controls and view restricted pages intended only for administrators. An attacker with basic user credentials can directly request sensitive log pages in a browser to gain unauthorized visibility into system operations and potentially sensitive information.

Vendors: [Nokia](https://junglewise.ai/threats/vendors/nokia).

## Quick answers

**Is CVE-2026-40463 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40463 being exploited in the wild.

**How severe is CVE-2026-40463?** High severity, with a CVSS score of 7.6, published 31 August 2026.

**Which products and versions are affected?** Nokia WaveSuite.

**Is there a fix for CVE-2026-40463?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-40463 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-40463?** Check whether you run Nokia WaveSuite. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a broken access control flaw in the CPB Log Files feature of WaveSuite. An authenticated low-privilege user can bypass role-based access controls by directly requesting URLs that should be restricted to higher-privilege roles, without additional authentication or checks. The vulnerability allows an attacker to enumerate and access log files and administrative pages not intended for their privilege level. This is a horizontal privilege escalation triggered purely by URL manipulation, requiring only valid (low-level) authentication and network access to the WaveSuite interface. Patch availability was not confirmed from the provided sources.

## Affected products

- Nokia WaveSuite

## Timeline

- 2026-08-31: disclosed

## References

- [https://www.nokia.com/we-are-nokia/security/product-security-advisory/cve-2026-40463/](https://www.nokia.com/we-are-nokia/security/product-security-advisory/cve-2026-40463/)