CVE-2026-67199

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.

Overview

State: PUBLISHED
Assigner (CNA): VulnCheck
CVSS severity: HIGH
CVSS score: 7.1 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Effective score: 7.1 / 10 HIGH source: CNA overview
CWE(s): CWE-770
Reserved: 2026-07-28
Published: 2026-08-04 14:04 UTC
Last updated: 2026-08-04 16:46 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/67xxx/CVE-2026-67199.json
Linked Threat: CVE-2026-67199 — Perspective 5.0.0 DoS via Loop Expression Evaluation

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-52695

EUVD enrichment is queued; refresh the page in a few seconds.

Affected products (1)

Vendor	Product	Versions	Platforms
perspective-dev	perspective	`0` (affected)	—

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

Researcher Disclosure technical-descriptionexploit
https://www.vulncheck.com/advisories/perspective-dos-via-loop-expression-evaluation third-party-advisory

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-67199 | Medium severity in Perspective | CVETodo

web:cvetodo.com

How do I fix CVE-2026-67199 ? To remediate CVE-2026-67199 : Check Perspective Dev's security advisories for official patches and updates. Update Perspective to the latest patched version. Review the references section below for vendor advisories and mitigation guidance. What is the CVSS score of CVE-2026-67199 ?

2026-08-06 01:15 UTC
Nvd - Cve-2026-67199

web:nvd.nist.gov

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 ...

2026-08-06 01:15 UTC
Security Update Guide - Microsoft Security Response Center

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-08-06 01:15 UTC
Description of the security update for SharePoint Server 2019: July 14 ...

web:support.microsoft.com

Improvements and fixes This security update contains improvements and fixes for the following nonsecurity issue in SharePoint Server 2019: Fixes an issue in which pages don't load because certain user controls are flagged as unsafe for security. After you apply this fix , you can explicitly trust the affected controls by configuring the custom farm property ...

2026-08-06 01:15 UTC
SAP Security Patch Day - June 2026

web:support.sap.com

SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.

2026-08-06 01:15 UTC
Addressing Exchange Server May 2026 vulnerability CVE-2026-42897

web:techcommunity.microsoft.com

We wanted to tell you how to address the Exchange Server May 2026 vulnerability CVE - 2026 -42897.

2026-08-06 01:15 UTC
CISA Adds Three Known Exploited Vulnerabilities to Catalog

web:www.cisa.gov

BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities.

2026-08-06 01:15 UTC
Oracle Critical Security Patch Update Advisory - June 2026

web:www.oracle.com

Additional CVEs addressed are: The patch for CVE - 2026 -34481 also addresses CVE - 2026 -34477, CVE - 2026 -34478, CVE - 2026 -34479, and CVE - 2026 -34480. Oracle Fusion Middleware Risk Matrix This Critical Security Patch Update contains 106 new security patches for Oracle Fusion Middleware. 53 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a ...

2026-08-06 01:15 UTC
Patch Tuesday - July 2026 - Rapid7

web:www.rapid7.com

Microsoft is publishing 622 vulnerabilities on July 2026 Patch Tuesday, including a record-breaking 416 Windows vulnerabilities.

2026-08-06 01:15 UTC
July 2026 Patch Tuesday: Largest Patch Tuesday 569 CVEs - Tenable

web:www.tenable.com

Microsoft patched 569 CVEs in July 2026 , the largest Patch Tuesday release in its history. 56 critical CVEs patched including three zero-day vulnerabilities.

2026-08-06 01:15 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-67199.json.

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