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CVE-2026-41450— UAC < 3.3.0 Command Injection via command_collector.sh

Quick assessment

Affected
tclahr uac
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

UAC（类 Unix 系统日志采集器）在 3.3.0 之前的版本中存在命令注入漏洞。该漏洞位于 函数中，在通过 执行命令之前，foreach 命令的输出行被直接通过 替换到命令字符串中，但未进行适当的转义处理。攻击者可以通过构造包含 shell 元字符（如命令替换语法或分号）的恶意文件名或采集定义，从而在分析师的主机上执行任意命令。

CVSS 7.8 · High EPSS 0.70% · P50

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
tclahr uac < 3.3.0 affected
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I. Basic Information for CVE-2026-41450

Vulnerability Information
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Vulnerability Title
UAC < 3.3.0 Command Injection via command_collector.sh
Source: CVE Program / CVE List V5
Vulnerability Description
UAC (Unix-like Artifacts Collector) versions prior to 3.3.0 contain a command injection vulnerability in the _command_collector function where foreach command output lines are substituted directly into command strings via sed without proper escaping before being evaluated with eval. Attackers can exploit this by crafting malicious filenames or artifact definitions containing shell metacharacters such as command substitution syntax or semicolons to execute arbitrary commands on the analyst's host system.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
tclahr uac 0 ~ 3.3.0 -

II. Public POCs for CVE-2026-41450

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6857 chars
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III. Intelligence Information for CVE-2026-41450

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Patches & Fixes for CVE-2026-41450 (1)

Vendor Advisories for CVE-2026-41450 (1)

Same Patch Batch · tclahr · 2026-08-21 · 3 CVEs total

CVE-2026-41449 7.8 HIGH UAC < 3.3.0 Command Injection via run_command.sh
CVE-2026-41451 7.8 HIGH UAC < 3.3.0 Command Injection via User Substitution in parse_artifact.sh

IV. Related Vulnerabilities

Same product: uac
Same vendor: tclahr
Same weakness: CWE-78

V. Comments for CVE-2026-41450

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