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

urllib3: Sensitive headers forwarded across origins in proxied low-level redirects

🗓️ 16 May 2026 08:05:12Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 24 Views

urllib3 forwards sensitive headers across origins during proxied redirects; risk identified.

Related
Detection
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: : Platform Navigator and Automation Assets in IBM Cloud Pak for Integration are vulnerable to multiple vulnerabilities in dependencies
8 Jun 202614:50
–ibm
IBM Security Bulletins		Security Bulletin: Location Service for ESRI Component uses urllib3-2.6.3 library which was vulnerable to CVE-2026-44431 and CVE-2026-44432
27 May 202613:45
–ibm
ATTACKERKB		CVE-2026-44431
13 May 202615:20
–attackerkb
Tenable Nessus		Amazon Linux 2023 : python3-urllib3 (ALAS2023-2026-1843)
22 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python3-urllib3, --advisory ALAS2-2026-3376 (ALAS-2026-3376)
22 Jun 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python-urllib3, --advisory ALAS2-2026-3377 (ALAS-2026-3377)
22 Jun 202600:00
–nessus
Tenable Nessus		CentOS 9 : python-urllib3-1.26.5-8.el9
22 Jun 202600:00
–nessus
Tenable Nessus		RHEL 10 : python3.14-urllib3 (RHSA-2026:27929)
22 Jun 202600:00
–nessus
Tenable Nessus		RHEL 10 : python-urllib3 (RHSA-2026:28000)
22 Jun 202600:00
–nessus
Tenable Nessus		RHEL 9 : python3.14-urllib3 (RHSA-2026:28157)
23 Jun 202600:00
–nessus
Rows per page
Vulners
Node
microsoftazl3_python-urllib3_2.0.7-4Range<2.0.7-5

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
19 May 2026 21:40Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
CVSS 48.2
EPSS0.00483
SSVC
sensitive headerscross originsproxied redirectslow level redirects
24