CVE-2026-113601
Memos before 0.27.0 Missing Authorization via ActivityService ListActivities/GetActivity
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 20, 2026
- Updated
- Oct 23, 2026
- Reserved
- Oct 20, 2026
Description
Memos before 0.27.0 contains a missing authorization vulnerability in the ActivityService ListActivities and GetActivity API methods that allows authenticated users to view all users' activity records. Low-privileged attackers can enumerate sequential activity IDs to obtain creator IDs, timestamps, and memo-comment references, including activity on other users' private memos.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
memosusememos |
|
References
- https://github.com/usememos/memos/issues/5651issue-tracking
- https://github.com/usememos/memos/commit/04f239a2fc74f7090c779a6a7b8a08238fd31b88patch
- memos v0.27.0 Release Notesrelease-notes
- https://github.com/usememos/memos/blob/v0.26.2/server/router/api/v1/activity_service.gotechnical-description
- VulnCheck Advisory: Memos before 0.27.0 Missing Authorization via ActivityService ListActivities/GetActivitythird-party-advisory
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