Description
Zulip is an open-source team collaboration tool. From 8.0 until 12.2, in organizations where the Who can view all other users in the organization setting restricted guests from viewing other users, saving or editing a direct message draft did not verify that the sender could access the draft recipients. A guest could thereby gain access to otherwise restricted users' profile information without sending a message. Organizations that did not restrict guest access were unaffected. This issue is fixed in version 12.2.
Published: 2026-11-04
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Fri, 06 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 04 Nov 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Zulip
Zulip zulip
Vendors & Products Zulip
Zulip zulip

Wed, 04 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Description Zulip is an open-source team collaboration tool. From 8.0 until 12.2, in organizations where the Who can view all other users in the organization setting restricted guests from viewing other users, saving or editing a direct message draft did not verify that the sender could access the draft recipients. A guest could thereby gain access to otherwise restricted users' profile information without sending a message. Organizations that did not restrict guest access were unaffected. This issue is fixed in version 12.2.
Title Zulip: Saving a draft DM to a user bypasses can_access_all_users_group permission
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-05T19:20:58.958Z

Reserved: 2026-10-22T15:06:52.738Z

Link: CVE-2026-115474

cve-icon Vulnrichment

Updated: 2026-11-05T19:20:49.614Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-04T20:19:01.983

Modified: 2026-11-06T21:29:48.800

Link: CVE-2026-115474

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T20:45:07Z

Weaknesses