AUGUST 4, 2026
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Case File

CVE-2021-30479

MEDIUM · CVSS 5.3 EPSS 0.86%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-04-15 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-30479
Severity
MEDIUM
CVSS
5.3
EPSS
0.86%

Original NVD 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.