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Medium

Apache Pulsar Broker Improper Authentication vulnerability

  • Disclosed: 12.07.2023
  • Updated: 11.10.2026 11:22

Improper Authentication vulnerability in Apache Software Foundation Apache Pulsar Broker allows a client to stay connected to a broker after authentication data expires if the client connected through the Pulsar Proxy when the broker is configured with authenticateOriginalAuthData=false or if a client connects directly to a broker with a specially crafted connect command when the broker is configured with authenticateOriginalAuthData=false.

This issue affects Apache Pulsar: through 2.9.4, from 2.10.0 through 2.10.3, 2.11.0.

2.9 Pulsar Broker users should upgrade to at least 2.9.5. 2.10 Pulsar Broker users should upgrade to at least 2.10.4. 2.11 Pulsar Broker users should upgrade to at least 2.11.1. 3.0 Pulsar Broker users are unaffected. Any users running the Pulsar Broker for 2.8.* and earlier should upgrade to one of the above patched versions.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.apache.pulsar:pulsar-broker >= 2.9.0, < 2.10.4, >= 2.11.0, < 2.11.1 2.10.4, 2.11.1

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE)
CWE-287
Platform
Java / Kotlin (Maven)
Package
org.apache.pulsar:pulsar-broker
Disclosed
12.07.2023
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-47r2-phr8-m8cp - CC BY 4.0

Vulnerability history: org.apache.pulsar:pulsar-broker

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
6
First → latest
09.2022 04.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 1
  • Medium 5

Disclosures per year

  1. Apache Pulsar: Improper Authorization For Namespace and Topic Management Endpoints
    Medium · 6.4 CVE-2024-29834 >= 2.7.1, <= 2.10.6, >= 2.11.0, <= 2.11.4, >= 3.0.0, < 3.0.4, >= 3.1.0, <= 3.1.3, >= 3.2.0, < 3.2.2 3.0.4, 3.2.2
  2. Apache Pulsar: Improper Authorization For Topic-Level Policy Management
    Medium · 5.4 CVE-2024-28098 >= 3.2.0, < 3.2.1, >= 3.1.0, < 3.1.3, >= 3.0.0, < 3.0.3, >= 2.11.0, < 2.11.4, >= 2.7.1, < 2.10.6 3.2.1, 3.1.3, 3.0.3, 2.11.4, 2.10.6
  3. Apache Pulsar Broker Improper Authentication vulnerability this entry
    Medium · 6.5 CVE-2023-31007 >= 2.9.0, < 2.10.4, >= 2.11.0, < 2.11.1 2.10.4, 2.11.1
  4. Apache Pulsar Broker's Rest Producer vulnerable to Incorrect Authorization
    High · 8.2 CVE-2023-30428 >= 2.9.0, < 2.10.4, >= 2.11.0, < 2.11.1 2.10.4, 2.11.1
  5. Apache Pulsar Brokers and Proxies vulnerable to Improper Certificate Validation
    Medium · 5.9 CVE-2022-33683 < 2.7.5, >= 2.8.0, < 2.8.4, >= 2.9.0, < 2.9.3, >= 2.10.0, < 2.10.1 2.7.5, 2.8.4, 2.9.3, 2.10.1
  6. Apache Pulsar Broker, Proxy, and WebSocket Proxy vulnerable to Improper Certificate Validation
    Medium · 5.9 CVE-2022-33682 < 2.7.5, >= 2.8.0, < 2.8.4, >= 2.9.0, < 2.9.3, >= 2.10.0, < 2.10.1 2.7.5, 2.8.4, 2.9.3, 2.10.1

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