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Medium 6.5Published Aug 11, 2026

CVE-2026-69115OpenIM Server v3.8.3 Missing Authorization on User and Group Enumeration Endpoints

Updated under an hour ago ()

Does this affect you?

It affects OpenIMSDK OpenIM Server (open-im-server). Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

OpenIM Server v3.8.3 contains a missing authorization vulnerability that allows any authenticated user to access admin-only management API endpoints by submitting POST requests with a regular user bearer token to /user/get_users, /user/get_all_users_uid, and /group/get_groups. Attackers can exploit the absent authverify.CheckAdmin() call in the GetPaginationUsers, GetAllUserID, and GetGroups handlers to enumerate all platform user accounts including userIDs, nicknames, and manager level flags, as well as all groups including private groups the user has never joined, exposing group names, owner IDs, and member counts.

CVSS
6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-862
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Aug 11, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
OpenIMSDK OpenIM Server (open-im-server)
openimsdk:openim_server_open_im_server (from the name)
through 3.8.3
CNA record

References

  • product
  • issue-tracking
  • patch
  • issue-tracking
  • third-party-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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