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CVE-2026-47657 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

HumHub is an Open Source Enterprise Social Network. In versions 1.13.0 through 1.18.2, a missing authorization check in the Space member management controller allowed any authenticated user to trigger the removal of all members from any Space, regardless of their own role or membership in that Space. Versions 1.13.0 through 1.18.2 are affected. The vulnerability has been patched in version 1.18.3, and all users are encouraged to upgrade to this version or later immediately. No known workaround is available.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/humhub/humhub/pull/8163	[email protected]	Issue TrackingVendor
https://github.com/humhub/humhub/security/advisories/GHSA-hj67-5q6h-j7c2	[email protected]	AdvisoryRemedyVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

Product	Versions
HumHub	>= 1.13.0, <= 1.18.2 (semver)
CPE cpe:2.3:a:humhub:humhub:::::::: Remediation Upgrade: 1.18.3moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Jul 21, 2026	CVE Modified	CISA-ADP
Jul 21, 2026	New CVE Received	[email protected]