CVE-2024-24770
Username timing attack on recover password/MFA token in vantage6
vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost. These routes send emails to users if they have lost their password or MFA token. This issue has been addressed in commit aecfd6d0e and is expected to ship in subsequent releases. Users are advised to upgrade as soon as a new release is available. There are no known workarounds for this vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Username timing attack on recover password/MFA token in vantage6
vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost. These routes send emails to users if they have lost their password or MFA token. This issue has been addressed in commit aecfd6d0e and is expected to ship in subsequent releases. Users are advised to upgrade as soon as a new release is available. There are no known workarounds for this vulnerability.
- Record
CVE-2024-24770- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-362, CWE-208
- Updated
- 2026-11-02
EUVDEUVD-2024-0829
vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost. These routes send emails to users if they have lost their password or MFA token. This issue has been addressed in commit aecfd6d0e and is expected to ship in subsequent releases. Users are advised to upgrade as soon as a new release is available. There are no known workarounds for this vulnerability.
- Record
EUVD-2024-0829- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5h3x-6gwf-73jm
vantage6 vulnerable to a username timing attack on recover password/MFA token
Impact
Much like https://github.com/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost, which send emails to users if they have lost their password or MFA token. Usernames can be found by assessing response time differences, and additionally, they can be found because the endpoint gives a response "Failed to login" if the username exists.
Patches
No
Workarounds
No
- Record
GHSA-5h3x-6gwf-73jm- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208, CWE-362
- Updated
- 2026-11-02
NVD
vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost. These routes send emails to users if they have lost their password or MFA token. This issue has been addressed in commit aecfd6d0e and is expected to ship in subsequent releases. Users are advised to upgrade as soon as a new release is available. There are no known workarounds for this vulnerability.
- Record
CVE-2024-24770- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208, CWE-362
- Updated
- 2026-11-02
OSV
Username timing attack on recover password/MFA token in vantage6
vantage6 is an open source framework built to enable, manage and deploy privacy enhancing technologies like Federated Learning and Multi-Party Computation. Much like GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost. These routes send emails to users if they have lost their password or MFA token. This issue has been addressed in commit aecfd6d0e and is expected to ship in subsequent releases. Users are advised to upgrade as soon as a new release is available. There are no known workarounds for this vulnerability.
- Record
CVE-2024-24770- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208, CWE-362
- Updated
- 2026-11-02
OSVGHSA-5h3x-6gwf-73jm
vantage6 vulnerable to a username timing attack on recover password/MFA token
Impact
Much like https://github.com/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost, which send emails to users if they have lost their password or MFA token. Usernames can be found by assessing response time differences, and additionally, they can be found because the endpoint gives a response "Failed to login" if the username exists.
Patches
No
Workarounds
No
- Record
GHSA-5h3x-6gwf-73jm- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-208, CWE-362
- Updated
- 2026-11-02
OSVPYSEC-2026-2005
vantage6 vulnerable to a username timing attack on recover password/MFA token
Impact
Much like https://github.com/vantage6/vantage6/security/advisories/GHSA-45gq-q4xh-cp53, it is possible to find which usernames exist in vantage6 by calling the API routes /recover/lost and /2fa/lost, which send emails to users if they have lost their password or MFA token. Usernames can be found by assessing response time differences, and additionally, they can be found because the endpoint gives a response "Failed to login" if the username exists.
Patches
No
Workarounds
No
- Record
PYSEC-2026-2005- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
vantage6PyPI |
through 4.2.2 | 4.3.0 |
vantage6PyPI |
before 4.3.0, plus listed versions 0.0.00.0.0b00.0.0b10.0.0b31.0.0 Show 45 moreShow less1.0.0a11.0.0a21.0.0b101.0.0b111.0.0b121.0.0b131.0.0b141.0.0b21.0.0b31.0.0b41.0.0b51.0.0b61.0.0b71.0.0b81.0.0b91.1.01.1.0rc11.1.0rc21.2.01.2.11.2.21.2.31.2.3.post22.0.02.0.0.post12.0.0a12.0.0a22.0.0a32.0.1rc12.0.1rc22.1.02.1.0rc12.1.12.2.02.2.0b12.2.0b22.2.0b32.2.0b42.2.12.2.102.2.112.2.122.2.22.2.32.2.4 |
4.3.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-24770 is a medium vulnerability (CVSS 5.3) in Vantage6, published March 14, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. Fixed in vantage6 4.3.0.
References
github.com/vantage6/vantage6/security/advisories/GHSA-5h3x-6gwf-73jm
nvd.nist.gov/vuln/detail/CVE-2024-24770
pypi.org/project/vantage6
Left out here: 160 versions. The JSON record has them.