Apache Pulsar Manager Missing Authentication Flaw (CVE-2026-105944) Rated CVSS 10
A newly published critical vulnerability in Apache Pulsar Manager carries a CVSS score of 10. Here is what is affected and how to respond.
Key points
- CVE-2026-105944 affects Apache Pulsar Manager.
- CVSS 10 (Critical).
- No exploitation confirmed yet.
A critical missing authentication tracked as CVE-2026-105944 has been published in the National Vulnerability Database for Apache Pulsar Manager, with a CVSS base score of 10.
At a glance
- CVE
- CVE-2026-105944
- Product
- Apache Pulsar Manager
- CVSS
- 10 Critical
- Weakness
- missing authentication
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: Apache Pulsar Manager is a web console for administering Apache Pulsar clusters. It has its own user accounts and login, and it can be configured with an HTTP authentication credential, such as a token, that it uses to call the Pulsar admin API on behalf of its users. Pulsar Manager has the following security issues:
- The operation for creating the initial administrator (superuser) account is available without authentication, and it remains available after the instance has been initialized. Anyone who can reach Pulsar Manager can create an additional administrator account at any time and log in with it. This issue affects versions 0.3.0 and later.
- Requests to the Pulsar admin API that Pulsar Manager proxies to the configured Pulsar cluster are not subject to Pulsar Manager's authentication. Version 0.2.0 checks the caller's permissions for some of these requests, but not for all of t
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Pulsar Manager | up to 0.4.0 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-105944
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-105944?
CVE-2026-105944 is a missing authentication vulnerability in Apache Pulsar Manager.
How severe is CVE-2026-105944?
It has a CVSS score of 10 Critical.
Is CVE-2026-105944 being exploited?
There is no public confirmation of exploitation at the time of publication.
