CVE-2023-44400: Uptime Kuma is a self-hosted monitoring tool

Q: How do I fix CVE-2023-44400?

uptime kuma: upgrade to 1.23.3. Exact commands for each OS are on this page.

Q: Is CVE-2023-44400 being exploited?

CVE-2023-44400 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-44400 affect?

CVE-2023-44400 affects uptime kuma. Severity is medium (CVSS 6.7). Uptime Kuma is a self-hosted monitoring tool. Prior to version 1.23.3, attackers with access to a user's device can gain persistent account access. This is caused by missing verification of Session Tokens after password changes and/or elaps

Q: How urgent is CVE-2023-44400?

Priority 34/100. Public exploit reference

Routine

MEDIUM 6.7UPGRADE

CVE-2023-44400 is a medium-severity flaw (CVSS 6.7) affecting uptime kuma. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Uptime Kuma is a self-hosted monitoring tool. Prior to version 1.23.3, attackers with access to a user's device can gain persistent account access. This is caused by missing verification of Session Tokens after password changes and/or elapsed inactivity periods. Version 1.23.3 has a patch for the issue.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.7 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-384
Published	2023-10-09
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: uptime.kuma

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-10-09 16:15 UTCPublished CVE record published
2026-06-17 06:27 UTCUpdated Record last modified

uptime.kuma uptime kuma UPGRADE

Affected: < 1.23.3

Fixed in: 1.23.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy uptime-kuma || rpm -q uptime-kuma || uptime-kuma --version

2. UPGRADE to 1.23.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade uptime-kuma

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade uptime-kuma

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-2023-44400?

uptime kuma: upgrade to 1.23.3. Exact commands for each OS are on this page.

Is CVE-2023-44400 being exploited?

CVE-2023-44400 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-2023-44400 affect?

CVE-2023-44400 affects uptime kuma. Severity is medium (CVSS 6.7). Uptime Kuma is a self-hosted monitoring tool. Prior to version 1.23.3, attackers with access to a user's device can gain persistent account access. This is caused by missing verification of Session Tokens after password changes and/or elaps

How urgent is CVE-2023-44400?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2026-33130 MEDIUM 6.5 UPGRADE Uptime Kuma is an open source, self-hosted monitoring tool
CVE-2026-32230 MEDIUM 5.3 UPGRADE Uptime Kuma is an open source, self-hosted monitoring tool
CVE-2023-49805 MEDIUM 6.0 UPGRADE UPGRADE Uptime Kuma is an easy-to-use self-hosted monitoring tool
CVE-2023-49804 MEDIUM 6.7 UPGRADE UPGRADE Uptime Kuma is an easy-to-use self-hosted monitoring tool
CVE-2023-49276 MEDIUM 6.3 UPGRADE Uptime Kuma is an open source self-hosted monitoring tool

References

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