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Vulnerability record · CVE-2026-86819 · published 8 September 2026

CVE-2026-86819: Missing authorization vulnerability

Waves Central for macOS contains a local privilege escalation in the privileged helper service. The helper authorizes connecting XPC clients by comparing the caller's code-signing certificate chain for equality with its own, rather than validating the caller against a pinned code requirement (application identifier and Team ID). A local, authenticated user can execute code within the vendor-signed process, satisfy the helper's client check, and cause the helper to execute a script with root privileges. Fixed in 17.0.

8.4 CVSS 4.0 High EPSS 0.10% · top 99.2% CWE-862 · Missing authorization Awaiting Analysis
8.4CVSS 4.0 base score
0.10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
14 Sep 2026Last modified by NVD

Description

Waves Central for macOS contains a local privilege escalation in the privileged helper service. The helper authorizes connecting XPC clients by comparing the caller's code-signing certificate chain for equality with its own, rather than validating the caller against a pinned code requirement (application identifier and Team ID). A local, authenticated user can execute code within the vendor-signed process, satisfy the helper's client check, and cause the helper to execute a script with root privileges. Fixed in 17.0.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/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:

References

LinkTags
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-251-02.json
https://www.cve.org/CVERecord?id=CVE-2026-86819
https://www.waves.com/downloads/release-notes#v17

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Source: NIST National Vulnerability Database (record CVE-2026-86819), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.