The vulnerability in the org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator component of the Apache Kafka messaging broker allows a attacker to circumvent security restrictions and gain unauthorized access to protected information.
🗓️ 08 Jul 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 13 Views
| Reporter | Title | Published | Views | Family All 38 |
|---|---|---|---|---|
 | CVE-2026-33557 | 20 Apr 202613:28 | – | attackerkb |
 | CVE-2026-33557 vulnerabilities | 25 Apr 202613:17 | – | cgr |
 | CVE-2026-33557 | 17 Apr 202609:12 | – | circl |
 | Apache Kafka 安全漏洞 | 20 Apr 202600:00 | – | cnnvd |
 | CVE-2026-33557 | 20 Apr 202613:28 | – | cve |
 | CVE-2026-33557 Apache Kafka: Missing JWT token validation in OAUTHBEARER authentication | 20 Apr 202613:28 | – | cvelist |
 | 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 |
 | Vulnerabilities in Oracle database products | 22 Jul 202614:00 | – | ncsc |
| Vulnerabilities found in Oracle Communications | 22 Jul 202614:02 | – | ncsc |
10
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
08 Jul 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 39.1
CVSS 29.4
EPSS0.00684