CVE-2026-33557 Apache Kafka: Missing JWT token validation in OAUTHBEARER authentication
| Reporter | Title | Published | Views | Family All 68 |
|---|---|---|---|---|
 | CVE-2026-33557 | 20 Apr 202613:28 | – | attackerkb |
 | Apache Kafka OAuth Bypass Unauthorized Access | 8 Jul 202600:00 | – | bdu_fstec |
 | Security Bulletin: Multiple Vulnerabilities in IBM Event Streams | 5 Oct 202617:01 | – | ibm |
 | CVE-2026-33557 vulnerabilities | 25 Apr 202613:17 | – | cgr |
 | CVE-2026-33557 | 17 Apr 202609:12 | – | circl |
 | Apache Kafka security vulnerabilities | 20 Apr 202600:00 | – | cnnvd |
 | CVE-2026-33557 | 20 Apr 202613:28 | – | cve |
 | EUVD-2026-23846 | 20 Apr 202615:31 | – | euvd |
 | Apache Kafka does not validate JWT tokens in its OAUTHBEARER authentication implementation | 20 Apr 202615:31 | – | github |
 | CVE-2026-33557 | 20 Apr 202613:28 | – | mend |
10
[
{
"defaultStatus": "unaffected",
"product": "Apache Kafka",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "4.1.1",
"status": "affected",
"version": "4.1.0",
"versionType": "semver"
}
]
}
]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
20 Apr 2026 13:28Current
CVSS 3.19.1
EPSS0.00897
SSVC