CVE-2023-30429 json
Apache Pulsar: Incorrect Authorization for Function Worker when using mTLS Authentication through Pulsar Proxy
published 2023-07-12 3 y ago modified 2026-06-17 4 mo ago also GHSA-g9cv-v3v4-3h8r , EUVD-2023-2059
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
Incorrect Authorization vulnerability in Apache Software Foundation Apache Pulsar.
This issue affects Apache Pulsar: before 2.10.4, and 2.11.0.
When a client connects to the Pulsar Function Worker via the Pulsar Proxy where the Pulsar Proxy uses mTLS authentication to authenticate with the Pulsar Function Worker, the Pulsar Function Worker incorrectly performs authorization by using the Proxy's role for authorization instead of the client's role, which can lead to privilege escalation, especially if the proxy is configured with a superuser role.
The recommended mitigation for impacted users is to upgrade the Pulsar Function Worker to a patched version.
2.10 Pulsar Function Worker users should upgrade to at least 2.10.4. 2.11 Pulsar Function Worker users should upgrade to at least 2.11.1. 3.0 Pulsar Function Worker users are unaffected. Any users running the Pulsar Function Worker for 2.9.* and earlier should upgrade to one of the above patched versions.
Patch / fix
- maven org.apache.pulsar:pulsar 2.10.4, 2.11.1
- Apache Software Foundation Apache Pulsar 2.10.4
- apache pulsar 2.10.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
1.03% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.pulsar:pulsar | <2.10.4 >=2.11.0, <2.11.1 |
2.10.4 2.11.1 |
Affected products
- Apache Software Foundation Apache Pulsar
- apache pulsar
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
lists.apache.org
/thread/v0gcvvxswr830314q4b1kybsfmcf3jf8
vendor-advisory, web, mailing-list
-
nvd.nist.gov
/vuln/detail/CVE-2023-30429
advisory
-
github.com
/apache/pulsar
package
Sources
- CVE List CVE-2023-30429
- GitHub Advisory GHSA-g9cv-v3v4-3h8r
- NVD CVE-2023-30429
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