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CVE-2024-21635: Memos is a privacy-first, lightweight note-taking service that uses Access Tokens to authenticate application

42
This week
HIGH 7.5REMOTEUPGRADE

CVE-2024-21635 is a high-severity flaw (CVSS 7.5) affecting memos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Memos is a privacy-first, lightweight note-taking service that uses Access Tokens to authenticate application access. When a user changes their password, the existing list of Access Tokens stay valid instead of expiring. If a user finds that their account has been compromised, they can update their password. In versions up to and including 0.18.1, though, the bad actor will still have access to their account because the bad actor's Access Token s

Why this priority

  • High severity
  • Public exploit reference
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score7.5 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.3% (top 77%)
CISA exploited listNo
WeaknessCWE-287
Published2025-11-14
Last modified2026-10-02
Publisher (CNA): GitHub, Inc. · Vendor: usememos

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Last updated 2026-10-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

usememos memos UPGRADE
Affected: <= 0.18.1
Fixed in: newer than 0.18.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy memos || rpm -q memos || memos --version
2. UPGRADE to newer than 0.18.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade memos
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade memos
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-21635?

memos: upgrade to newer than 0.18.1. Exact commands for each OS are on this page.

Is CVE-2024-21635 being exploited?

CVE-2024-21635 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-21635 affect?

CVE-2024-21635 affects memos. Severity is high (CVSS 7.5). Memos is a privacy-first, lightweight note-taking service that uses Access Tokens to authenticate application access. When a user changes their password, the existing list of Access Tokens stay valid instead of expiring. If a user finds tha

How urgent is CVE-2024-21635?

Priority 42/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

References

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