CVE-2026-6634: Memos has an Incorrect Privilege Assignment issue

April 20, 2026 (updated April 28, 2026)

A weakness has been identified in usememos memos up to 0.22.1. This affects the function memos_access_token of the file src/App.tsx of the component UpdateInstanceSetting. This manipulation of the argument additionalStyle/additionalScript causes improper authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

References

github.com/Dave-gilmore-aus/security-advisories/blob/main/usememos-security-advisory
github.com/advisories/GHSA-gqp3-hfc3-8q54
github.com/usememos/memos
nvd.nist.gov/vuln/detail/CVE-2026-6634
vuldb.com/submit/793432
vuldb.com/vuln/358268
vuldb.com/vuln/358268/cti

Code Behaviors & Features

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