Is CVE-2026-6634 actively exploited?

No active exploitation of CVE-2026-6634 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6634 be exploited remotely?

Yes. CVE-2026-6634 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6634?

CVE-2026-6634 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-6634

CWE-266Published: April 20, 2026· Updated: Apr 22, 2026

6.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-6634 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.