Native Instruments Native Access XPC Service hasValidSignature toctou

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Native Instruments Native Access and classified as critical. This vulnerability affects the function hasValidSignature of the component XPC Service. Performing a manipulation results in toctou. This vulnerability is identified as CVE-2026-24071. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Native Instruments Native Access (the affected version unknown). This affects the function hasValidSignature of the component XPC Service. The manipulation with an unknown input leads to a toctou vulnerability. CWE is classifying the issue as CWE-367. The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released by Florian Haselsteiner. It is possible to read the advisory at sec-consult.com. This vulnerability is uniquely identified as CVE-2026-24071 since 01/21/2026. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-5109). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.8
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Toctou
CWE: CWE-367 / CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/21/2026 CVE reserved
02/02/2026 +12 days Advisory disclosed
02/02/2026 +0 days VulDB entry created
02/12/2026 +10 days VulDB entry last update

Sourcesinfo

Advisory: sec-consult.com
Researcher: Florian Haselsteiner
Status: Not defined

CVE: CVE-2026-24071 (🔒)
GCVE (CVE): GCVE-0-2026-24071
GCVE (VulDB): GCVE-100-343731
EUVD: 🔒

Entryinfo

Created: 02/02/2026 15:23
Updated: 02/12/2026 02:12
Changes: 02/02/2026 15:23 (53), 02/03/2026 11:02 (1), 02/12/2026 02:12 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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