Lucene search
+L
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
Assessment
Vulnerability Intelligence
Exploits
Alerts
Datasets
MCP
White Label
Security Automation SDK
MCP for AI Agents
Plans & Pricing
API Reference
Settings
Sign in

curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication

🗓️ 07 Apr 2026 15:43:21Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 10 Views

Curl authentication bypass flaw from connection reuse with Negotiate when credentials differ.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2026-1965, CVE-2026-3783, CVE-2026-3784)
1 Jul 202608:04
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates
14 Sep 202610:00
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Vulnerable Version of Software in Use
17 Sep 202620:17
–ibm
freebsd
FreeBSD		curl -- Multiple vulnerabilties
11 Mar 202600:00
–freebsd
attackerkb
attackerkb		CVE-2026-1965
11 Mar 202610:08
–attackerkb
nessus
Tenable Nessus		AlmaLinux 9 : curl (ALSA-2026:55439)
18 Aug 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9.6 [CIQ] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ciqsa-2026_1401)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Rocky Linux 9 [CIQ] Security Update: curl / curl-debuginfo / curl-debugsource / curl-minimal / etc Multiple Vulnerabilities (crlsa-2026_55439)
1 Oct 202600:00
–nessus
nessus
Tenable Nessus		Curl 7.10.6 < 8.19.0 Authentication Bypass
17 Mar 202600:00
–nessus
nessus
Tenable Nessus		EulerOS Virtualization 2.12.1 : curl (EulerOS-SA-2026-2072)
6 Jun 202600:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64curl8.19.0-3.hum1curl-8.19.0-3.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64curl8.19.0-3.hum1curl-8.19.0-3.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libcurl8.19.0-3.hum1libcurl-8.19.0-3.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libcurl8.19.0-3.hum1libcurl-8.19.0-3.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libcurl-devel8.19.0-3.hum1libcurl-devel-8.19.0-3.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libcurl-devel8.19.0-3.hum1libcurl-devel-8.19.0-3.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64libcurl-minimal8.19.0-3.hum1libcurl-minimal-8.19.0-3.hum1.aarch64.rpm
Red Hat Hardened Imagesanyx86_64libcurl-minimal8.19.0-3.hum1libcurl-minimal-8.19.0-3.hum1.x86_64.rpm

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
14 Oct 2026 03:09Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.16.5
EPSS0.00264
SSVC
CWE-303
curlauthenticationbypassconnection reusenegotiate authenticationcredentials
10