Improper Verification of Cryptographic Signature in Apache Pulsar in TensorFlow
If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to "none". This allows an attacker to connect to Pulsar instances as any user (incl. admins).
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.pulsar:pulsar | < 2.7.2 | 2.7.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-22160
- https://github.com/apache/pulsar/releases/tag/v2.7.2
- https://lists.apache.org/thread.html/r08c7df60cae031361df7fbac39d08b6d5b5079e74db5195d409db9a2@%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r347650d15a3e9c5f58b83e918b6ad6dedc2a63d3eb63da8e6a7be87e%40%3Cusers.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r8e545559781231a83bf0644548c660255859e52feb86bbfcd42590da@%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r9a12b4da2f26ce9b8f7e7117a879efaa973dab7e54717bbc7923fab1%40%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/ra49cb62105154e4795b259c79a6b27d63bfa2ab5787ff8529b089550@%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/ra49cb62105154e4795b259c79a6b27d63bfa2ab5787ff8529b089550@%3Cusers.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/rbe845aa1573a61769b9c5916c62971f4b10de87c2ea5f38a97f0cf84@%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/rca54f4b26ba5e6f2e39732b47ec51640e89f57e3b6a38ac3bab314df@%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/re2ae364e0c02093dc721699698c6f23cfbba0220c78b5e28cafeae81@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/rf2e90942996dceebac8296abf39257cfeb5ae918f82f7af3d37a48c5@%3Cdev.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/rf54fefc25c49d4715d484133d438f13bf2e515a5fed5d3a745d4f6e7@%3Ccommits.pulsar.apache.org%3E
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-347- Platform
- Java / Kotlin (Maven)
- Package
org.apache.pulsar:pulsar- Disclosed
- 01.06.2021
- Updated
- 11.10.2026 11:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-3cv4-xxv7-934q - CC BY 4.0
Vulnerability history: org.apache.pulsar:pulsar
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
- 4
- First → latest
- 06.2021 07.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- Medium 2
Disclosures per year
- 2021: 1
- 2022: 2
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 0
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Improper Verification of Cryptographic Signature in Apache Pulsar in TensorFlow this entry
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