Read the docs
TI-2022-14800 Aliases CVE-2022-33682GHSA-jvf3-mfxv-jcqr

Disabled Hostname Verification makes Brokers, Proxies vulnerable to MITM attack

Priority LOW 28CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Spoofing
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-295.

Summary

TLS hostname verification cannot be enabled in the Pulsar Broker's Java Client, the Pulsar Broker's Java Admin Client, the Pulsar WebSocket Proxy's Java Client, and the Pulsar Proxy's Admin Client leaving intra-cluster connections and geo-replication connections vulnerable to man in the middle attacks, which could leak credentials, configuration data, message data, and any other data sent by these clients. The vulnerability is for both the pulsar+ssl protocol and HTTPS. An attacker can only take advantage of this vulnerability by taking control of a machine 'between' the client and the server. The attacker must then actively manipulate traffic to perform the attack by providing the client with a cryptographically valid certificate for an unrelated host. This issue affects Apache Pulsar Broker, Proxy, and WebSocket Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0; 2.6.4 and earlier.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00717 54th percentileScored 2026-11-07
Fix Fixed org.apache.pulsar:pulsar-broker (Maven): 2.7.5, 2.8.4, 2.9.3 +1org.apache.pulsar:pulsar-proxy (Maven): 2.7.5, 2.8.4, 2.9.3 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Pulsar2.10.0; 2.7 – 2.7.4; 2.8 – 2.8.3; 2.9 – 2.9.2; 2.6 and earlier – 2.6.4—No fix listedCNA
—org.apache.pulsar:pulsar-broker (Maven)before 2.7.52.7.5Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-proxy (Maven)before 2.7.52.7.5Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-broker (Maven)2.8.0 to before 2.8.42.8.4Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-proxy (Maven)2.8.0 to before 2.8.42.8.4Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-broker (Maven)2.9.0 to before 2.9.32.9.3Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-proxy (Maven)2.9.0 to before 2.9.32.9.3Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-broker (Maven)2.10.0 to before 2.10.12.10.1Patch availableGHSA-jvf3-mfxv-jcqr
—org.apache.pulsar:pulsar-proxy (Maven)2.10.0 to before 2.10.12.10.1Patch availableGHSA-jvf3-mfxv-jcqr
  • Apache Pulsar VendorApache Affected 2.10.0; 2.7 – 2.7.4; 2.8 – 2.8.3; 2.9 – 2.9.2; 2.6 and earlier – 2.6.4 Fixed in — No fix listed CNA
  • org.apache.pulsar:pulsar-broker (Maven) Vendor— Affected before 2.7.5 Fixed in 2.7.5 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-proxy (Maven) Vendor— Affected before 2.7.5 Fixed in 2.7.5 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-broker (Maven) Vendor— Affected 2.8.0 to before 2.8.4 Fixed in 2.8.4 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-proxy (Maven) Vendor— Affected 2.8.0 to before 2.8.4 Fixed in 2.8.4 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-broker (Maven) Vendor— Affected 2.9.0 to before 2.9.3 Fixed in 2.9.3 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-proxy (Maven) Vendor— Affected 2.9.0 to before 2.9.3 Fixed in 2.9.3 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-broker (Maven) Vendor— Affected 2.10.0 to before 2.10.1 Fixed in 2.10.1 Patch available GHSA-jvf3-mfxv-jcqr
  • org.apache.pulsar:pulsar-proxy (Maven) Vendor— Affected 2.10.0 to before 2.10.1 Fixed in 2.10.1 Patch available GHSA-jvf3-mfxv-jcqr

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:*before 2.7.5; 2.8.0 to before 2.8.4; 2.9.0 to before 2.9.3VulnerableApache
cpe:2.3:a:apache:pulsar:2.10.0:-:*:*:*:*:*:*2.10.0VulnerableApache
  • cpe:2.3:a:apache:pulsar:*:*:*:*:*:*:*:* Versions before 2.7.5; 2.8.0 to before 2.8.4; 2.9.0 to before 2.9.3 Vulnerable ·Apache
  • cpe:2.3:a:apache:pulsar:2.10.0:-:*:*:*:*:*:* Versions 2.10.0 Vulnerable ·Apache

Remediation

  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-broker (Maven) Fixed in 2.7.5 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-proxy (Maven) Fixed in 2.7.5 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-broker (Maven) Fixed in 2.8.4 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-proxy (Maven) Fixed in 2.8.4 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-broker (Maven) Fixed in 2.9.3 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-proxy (Maven) Fixed in 2.9.3 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-broker (Maven) Fixed in 2.10.1 Advisory →
  • Fix · GHSA-jvf3-mfxv-jcqr org.apache.pulsar:pulsar-proxy (Maven) Fixed in 2.10.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-33682
  2. 2026-10-03 Alias added: GHSA-jvf3-mfxv-jcqr

References

Advisory 2

  • TI-2024-18155 Apache Pulsar: Pulsar Functions Worker's Archive Extraction Vulnerability Allows Unauthorized File Modification CVSS 3.1CRITICAL 9.9
  • TI-2021-05150 Authentication with JWT allows use of “none”-algorithm CVSS 3.1CRITICAL 9.8
  • TI-2024-17990 Apache Pulsar: Improper Input Validation in Pulsar Function Worker allows Remote Code Execution CVSS 3.1CRITICAL 9.9
  • TI-2023-14272 Apache Pulsar: Incorrect Authorization for Function Worker when using mTLS Authentication through Pulsar Proxy CVSS 3.1CRITICAL 9.6
  • TI-2022-15232 Apache Pulsar: Improper Authentication for Pulsar Proxy Statistics Endpoint CVSS 3.1HIGH 8.2
  • TI-2024-18500 Apache Pulsar: Pulsar Functions Worker Allows Unauthorized File Access and Unauthorized HTTP/HTTPS Proxying CVSS 3.1HIGH 8.8
See all 19 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences