CVE-2026-24068 (GCVE-0-2026-24068)

Vulnerability from cvelistv5 – Published: 2026-03-26 10:55 – Updated: 2026-04-03 05:33
VLAI?
Title
Missing XPC Client & NSXPC endpoint validation leads to privilege escalation in Vienna Assistant (MacOS) - Vienna Symphonic Library
Summary
The VSL privileged helper does utilize NSXPC for IPC. The implementation of the "shouldAcceptNewConnection" function, which is used by the NSXPC framework to validate if a client should be allowed to connect to the XPC listener, does not validate clients at all. This means that any process can connect to this service using the configured protocol. A malicious process is able to call all the functions defined in the corresponding HelperToolProtocol. No validation is performed in the functions "writeReceiptFile" and “runUninstaller” of the HelperToolProtocol. This allows an attacker to write files to any location with any data as well as execute any file with any arguments. Any process can call these functions because of the missing XPC client validation described before. The abuse of the missing endpoint validation leads to privilege escalation.
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-306 - Missing authentication for critical function
Assigner
References
https://r.sec-consult.com/vsl third-party-advisory
Impacted products
Vendor Product Version
Vienna Symphonic Library GmbH Vienna Assistant Affected: 1.2.542
Create a notification for this product.
Credits
Florian Haselsteiner, SEC Consult Vulnerability Lab
Show details on NVD website
To clipboard 

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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