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CVE-2026-15519— usestrix PyPI system_prompt.jinja inclusion of functionality from untrusted control sphere

Quick assessment

Affected
usestrix strix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

usestrix strix是usestrix个人开发者的一款服务器软件。 usestrix strix 1.0.2及之前版本存在软件供应链问题漏洞，该漏洞源于PyPI Handler组件中文件system_prompt.jinja的未知函数问题，导致包含来自不可信控制范围的功能。

CVSS 5.0 · Medium EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
usestrix strix 1.0.0 affected
1.0.1 affected
1.0.2 affected
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I. Basic Information for CVE-2026-15519

Vulnerability Information
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Vulnerability Title
usestrix PyPI system_prompt.jinja inclusion of functionality from untrusted control sphere
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in usestrix strix up to 1.0.2. This affects an unknown function of the file system_prompt.jinja of the component PyPI Handler. Performing a manipulation results in inclusion of functionality from untrusted control sphere. The attack is possible to be carried out remotely. The complexity of an attack is rather high. The exploitability is reported as difficult. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
从非可信控制范围包含功能例程
Source: CVE Program / CVE List V5
Vulnerability Title
usestrix strix 软件供应链问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
usestrix strix是usestrix个人开发者的一款服务器软件。 usestrix strix 1.0.2及之前版本存在软件供应链问题漏洞，该漏洞源于PyPI Handler组件中文件system_prompt.jinja的未知函数问题，导致包含来自不可信控制范围的功能。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
usestrix strix 1.0.0 cpe:2.3:a:usestrix:strix:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-15519

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III. Intelligence Information for CVE-2026-15519

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Other References for CVE-2026-15519 (1)

IV. Related Vulnerabilities

Same weakness: CWE-829

V. Comments for CVE-2026-15519

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