How severe is CVE-2024-21624?

CVE-2024-21624 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2024-21624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21624?

CVE-2024-21624 primarily affects Nonebot. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-21624?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-21624 have an EU (EUVD) identifier?

Yes. CVE-2024-21624 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0119.

When was CVE-2024-21624 published?

CVE-2024-21624 was published on 2024-02-09 and last updated on 2026-06-17.

CVE-2024-21624

CVE-2024-21624 is a medium-severity vulnerability in Nonebot with a CVSS 3.x base score of 5.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0119
Weakness: CWE-200
Affected product: Nonebot
Published: 2024-02-09
Last modified: 2026-06-17

Description

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 these patched versions to safeguard against the vulnerability. A temporary workaround involves filtering underscores before incorporating user input into the message template.

Frequently asked questions

What is CVE-2024-21624?: 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 these patched versions to safeguard against the vulnerability. A temporary workaround involves filtering underscores before incorporating user input into the message template.
How severe is CVE-2024-21624?: CVE-2024-21624 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2024-21624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21624?: CVE-2024-21624 primarily affects Nonebot. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-21624?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21624 have an EU (EUVD) identifier?: Yes. CVE-2024-21624 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0119.
When was CVE-2024-21624 published?: CVE-2024-21624 was published on 2024-02-09 and last updated on 2026-06-17.

References

Affected products (12)

cpe:2.3:a:nonebot:nonebot:*:*:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:-:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:alpha16:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:beta5:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:nonebot:nonebot:2.0.0:rc4:*:*:*:*:*:*

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