What’s Vulnerable › Vulnerabilities

CVE-2026-6634: usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-20 · updated 2026-10-26
• Weakness: CWE-266

Description

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.

Affected products

• usememos/memos: 0.22.0, 0.22.1

References

• https://github.com/Dave-gilmore-aus/security-advisories/blob/main/usememos-security-advisory
• https://vuldb.com/submit/793432
• https://vuldb.com/vuln/358268
• https://vuldb.com/vuln/358268/cti

Get alerted when CVE-2026-6634 or the next vulnerability affects your stack