{"cve":"CVE-2022-33682","nvd":{"published":"2022-09-23T10:15:10.297","modified":"2026-06-17T04:49:14.793","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-295"],"references":["https://lists.apache.org/thread/l0ynfl161qghwfcgbbl8ld9hzbl9t3yx","https://lists.apache.org/thread/l0ynfl161qghwfcgbbl8ld9hzbl9t3yx"],"products":["apache:pulsar"],"source":"nvd","synced_at":"2026-10-19T21:36:05.460296998+00:00"},"epss":{"cve":"CVE-2022-33682","score":0.00717,"percentile":0.53834,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jvf3-mfxv-jcqr","url":"https://osv.dev/vulnerability/GHSA-jvf3-mfxv-jcqr","summary":"Apache Pulsar Broker, Proxy, and WebSocket Proxy vulnerable to Improper Certificate Validation","modified":"2023-11-08T04:09:40.336799Z","packages":[{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-broker","purl":"pkg:maven/org.apache.pulsar/pulsar-broker","ranges":["<2.7.5"],"fixed":["2.7.5"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-proxy","purl":"pkg:maven/org.apache.pulsar/pulsar-proxy","ranges":["<2.7.5"],"fixed":["2.7.5"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-broker","purl":"pkg:maven/org.apache.pulsar/pulsar-broker","ranges":[">=2.8.0 <2.8.4"],"fixed":["2.8.4"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-proxy","purl":"pkg:maven/org.apache.pulsar/pulsar-proxy","ranges":[">=2.8.0 <2.8.4"],"fixed":["2.8.4"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-broker","purl":"pkg:maven/org.apache.pulsar/pulsar-broker","ranges":[">=2.9.0 <2.9.3"],"fixed":["2.9.3"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-proxy","purl":"pkg:maven/org.apache.pulsar/pulsar-proxy","ranges":[">=2.9.0 <2.9.3"],"fixed":["2.9.3"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-broker","purl":"pkg:maven/org.apache.pulsar/pulsar-broker","ranges":[">=2.10.0 <2.10.1"],"fixed":["2.10.1"]},{"ecosystem":"Maven","name":"org.apache.pulsar:pulsar-proxy","purl":"pkg:maven/org.apache.pulsar/pulsar-proxy","ranges":[">=2.10.0 <2.10.1"],"fixed":["2.10.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}