CVE-2024-24769 Vantage6: No limit on emails sent for password/MFA reset
Attackers can flood user mailboxes and SMTP servers by repeatedly triggering MFA reset emails, causing service disruption.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-24769?
CVE-2024-24769 is a low-severity denial of service vulnerability in vantage6, published on 17 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
vantage6 is an open-source infrastructure for privacy preserving analysis. Prior to version 5.0.0, users can reset their MFA token via API routes that send them an email. Currently the number of emails that is sent is not limited. This gives attackers the option to flood someones mailbox with a lot of emails, and would have adverse effects on the SMTP server which may be seen as spam sender. Note resetting the MFA token requires a correct password, so the potential impact for this is very low. Version 5.0.0 fixes the issue. No known workarounds are available.
Weakness: CWE-400
Which versions are affected by CVE-2024-24769?
3 open source packages ship an affected version, including vantage6.
| Package | Affected | Fixed in |
|---|---|---|
vantage6 PyPI | All versions | 5.0.0 |
vantage6 PyPI | All versions | 5.0.0 |
vantage6 PyPI | All versions | 5.0.0 |
How do I fix CVE-2024-24769?
Upgrade vantage6 to 5.0.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-24769 being exploited?
There is no known exploitation of CVE-2024-24769 in the wild and no public exploit code.
Sources
Also known as GHSA-5549-c5q7-fj65, PYSEC-2026-3399.