CVE-2026-113601

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.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/usememos/memos/blob/v0.26.2/server/router/api/v1/activity_service.go
https://github.com/usememos/memos/commit/04f239a2fc74f7090c779a6a7b8a08238fd31b88
https://github.com/usememos/memos/issues/5651
https://github.com/usememos/memos/releases/tag/v0.27.0
https://www.vulncheck.com/advisories/memos-before-0.27.0-missing-authorization-via-activityservice-listactivities-getactivity

Configurations

No configuration.

History

20 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 16:17

Updated : 2026-10-23 02:16

NVD link : CVE-2026-113601

Mitre link : CVE-2026-113601

CVE.ORG link : CVE-2026-113601

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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