CVE-2021-30479
Last modified
CVE-2021-30479 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization.. EPSS estimates a 0.86% chance of exploitation in the next 30 days.
Description
An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zulip | Zulip Server | < 3.4 |
References
- https://blog.zulip.com/2021/04/14/zulip-server-3-4/Vendor Advisory
- https://blog.zulip.com/2021/04/14/zulip-server-3-4/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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