Zulip is an open-source team collaboration tool. Zulip supports a configuration where account creation is limited solely by being able to authenticate with a single-sign on authentication backend, meaning the organization places no restrictions on email address domains or invitations being required to join, but has disabled the EmailAuthBackend that is used for email/password authentication. A bug in the Zulip server means that it is possible to create an account in such organizations, without having an account with the configured SSO authentication backend. This issue is patched in version 10.2. A workaround includes requiring invitations to join the organization prevents the vulnerability from being accessed.
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Thu, 17 Apr 2025 14:15:00 +0000
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ssvc
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Wed, 16 Apr 2025 21:45:00 +0000
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Description | Zulip is an open-source team collaboration tool. Zulip supports a configuration where account creation is limited solely by being able to authenticate with a single-sign on authentication backend, meaning the organization places no restrictions on email address domains or invitations being required to join, but has disabled the EmailAuthBackend that is used for email/password authentication. A bug in the Zulip server means that it is possible to create an account in such organizations, without having an account with the configured SSO authentication backend. This issue is patched in version 10.2. A workaround includes requiring invitations to join the organization prevents the vulnerability from being accessed. | |
Title | Zulip Authentication Backend Configuration Bypass | |
Weaknesses | CWE-287 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-04-17T13:18:13.288Z
Reserved: 2025-03-28T13:36:51.297Z
Link: CVE-2025-31478

Updated: 2025-04-17T13:18:07.086Z

Status : Awaiting Analysis
Published: 2025-04-16T22:15:14.233
Modified: 2025-04-17T20:21:48.243
Link: CVE-2025-31478

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