CVE-2024-21624: nonebot2 is a cross-platform Python asynchronous chatbot framework written in Python

Routine

MEDIUM 5.7UPGRADE

CVE-2024-21624 is a medium-severity flaw (CVSS 5.7) affecting nonebot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

nonebot2 is a cross-platform Python asynchronous chatbot framework written in Python. This security advisory pertains to a potential information leak (e.g., environment variables) in instances where developers utilize `MessageTemplate` and incorporate user-provided data into templates. The identified vulnerability has been remedied in pull request #2509 and will be included in versions released from 2.2.0. Users are strongly advised to upgrade to

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-200
Published	2024-02-09
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: nonebot

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

Am I affected?

Timeline

2024-02-09 23:15 UTCPublished CVE record published
2026-06-17 07:09 UTCUpdated Record last modified

nonebot nonebot UPGRADE

Affected: >= 2.0.1 and < 2.2.0 · 2.0.0 · 2.0.0 alpha16 · 2.0.0 beta1 · 2.0.0 beta2 · 2.0.0 beta3 · 2.0.0 beta4 · 2.0.0 beta5

Fixed in: 2.2.0

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy nonebot || rpm -q nonebot || nonebot --version

2. UPGRADE to 2.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nonebot

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nonebot

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison nonebot sudo apt install nonebot=<VERSION_BEFORE_2.0.0> sudo apt-mark hold nonebot

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nonebot sudo dnf downgrade nonebot-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add nonebot

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2024-21624?

nonebot: upgrade to 2.2.0. Exact commands for each OS are on this page.

Is CVE-2024-21624 being exploited?

CVE-2024-21624 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-2024-21624 affect?

CVE-2024-21624 affects nonebot. Severity is medium (CVSS 5.7). nonebot2 is a cross-platform Python asynchronous chatbot framework written in Python. This security advisory pertains to a potential information leak (e.g., environment variables) in instances where developers utilize `MessageTemplate` and

How urgent is CVE-2024-21624?

Priority 30/100. No elevated risk signals yet.

Software pages

Python vulnerabilities

References

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