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CVE-2026-67199— Perspective 5.0.0 DoS via Loop Expression Evaluation

Quick assessment

Affected
perspective-dev perspective
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.

Perspective是Perspective团队的一款帮助用户从多维度视角审视与分析数据的辅助工具。 Perspective 5.0.0版本存在资源管理错误漏洞，该漏洞源于提交包含无界for或while循环构造的特制表达式，可能导致服务器事件循环无限阻塞，造成拒绝服务。

CVSS 6.5 · Medium EPSS 0.30% · P22

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
perspective-dev perspective ≤ 5.0.0 affected
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I. Basic Information for CVE-2026-67199

Vulnerability Information
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Vulnerability Title
Perspective 5.0.0 DoS via Loop Expression Evaluation
Source: CVE Program / CVE List V5
Vulnerability Description
Perspective 5.0.0 contains a denial of service vulnerability that allows remote attackers to block the server event loop indefinitely by submitting a crafted expression containing unbounded for or while loop constructs in a TableMakeViewReq message. Attackers can embed an arbitrarily large iteration count in an expression column evaluated once per table row, causing the Tornado IOLoop to block without any iteration cap, deadline, or cancellation check, rendering the server unresponsive to all connected clients.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Perspective 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Perspective是Perspective团队的一款帮助用户从多维度视角审视与分析数据的辅助工具。 Perspective 5.0.0版本存在资源管理错误漏洞，该漏洞源于提交包含无界for或while循环构造的特制表达式，可能导致服务器事件循环无限阻塞，造成拒绝服务。
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
perspective-dev perspective 0 ~ 5.0.0 -

II. Public POCs for CVE-2026-67199

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III. Intelligence Information for CVE-2026-67199

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Vendor Advisories for CVE-2026-67199 (1)

Same Patch Batch · perspective-dev · 2026-08-04 · 5 CVEs total

CVE-2026-67195 8.8 HIGH Perspective 5.0.0 RCE via eval() Expression Injection
CVE-2026-67198 7.5 HIGH Perspective 5.0.0 DoS via VirtualServer Protocol Dispatcher
CVE-2026-67200 7.5 HIGH Perspective 5.0.0 Path Traversal via cwd_static_file_handler
CVE-2026-67196 5.4 MEDIUM Perspective 5.0.0 XSS via Debug Plugin innerHTML Interpolation

IV. Related Vulnerabilities

Same product: perspective
Same vendor: perspective-dev
Same weakness: CWE-770

V. Comments for CVE-2026-67199

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