Lucene search
K
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Support
Settings
Sign in

CLSA-2026-1777946871 python: Fix of CVE-2026-4519

🗓️ 05 May 2026 02:07:56Reported by GoogleType 
osv
 osv🔗 osv.dev👁 9 Views

Python: fix CVE-2026-4519 by rejecting leading dashes in webbrowser URLs and closing the action substitution bypass.

Related
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to multiple Operator package issues
10 Jun 202618:06
–ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates
7 May 202613:38
–ibm
FreeBSD		Python -- The webbrowser.open() API allows leading dashes
20 Mar 202600:00
–freebsd
FreeBSD		python -- more webbrowser.open() command injection vulnerabilities
6 Apr 202600:00
–freebsd
ATTACKERKB		CVE-2026-4519
20 Mar 202615:08
–attackerkb
ATTACKERKB		CVE-2026-4786
13 Apr 202621:52
–attackerkb
Tenable Nessus		Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2026-1555)
13 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.14, python3.14-devel, python3.14-freethreading (ALAS2023-2026-1556)
13 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.12, python3.12-devel, python3.12-idle (ALAS2023-2026-1557)
13 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.11, python3.11-devel, python3.11-idle (ALAS2023-2026-1558)
13 Apr 202600:00
–nessus
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a live demo
01 Jun 2026 00:33Current
7.1High risk
Vulners AI Score7.1
CVSS 3.13.3 - 7.1
CVSS 47
EPSS0.00308
SSVC
leading dasheswebbrowser urlsexternal browsersunixbrowser openaction substitution
9