Datasette 1.0 alpha series leaks names of databases and tables to unauthenticated users
Impact
This bug affects Datasette instances running a Datasette 1.0 alpha - 1.0a0, 1.0a1, 1.0a2 or 1.0a3 - in an online accessible location but with authentication enabled using a plugin such as datasette-auth-passwords.
The /-/api API explorer endpoint could reveal the names of both databases and tables - but not their contents - to an unauthenticated user.
Patches
Datasette 1.0a4 has a fix for this issue.
Workarounds
To work around this issue, block all traffic to the /-/api endpoint. This can be done with a proxy such as Apache or NGINX, or by installing the datasette-block plugin and adding the following configuration to your metadata.json or metadata.yml file:
{
"plugins": {
"datasette-block": {
"prefixes": ["/-/api"]
}
}
}This will block access to the API explorer but will still allow access to the Datasette read or write JSON APIs, as those use different URL patterns within the Datasette /database hierarchy.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | datasette | >= 1.0a0, < 1.0a4 | 1.0a4 |
References
- https://github.com/simonw/datasette/security/advisories/GHSA-7ch3-7pp7-7cpq
- https://github.com/simonw/datasette/commit/01e0558825b8f7ec17d3b691aa072daf122fcc74
- https://nvd.nist.gov/vuln/detail/CVE-2023-40570
- https://github.com/pypa/advisory-database/tree/main/vulns/datasette/PYSEC-2023-154.yaml
- https://github.com/simonw/datasette
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-200, CWE-213- Platform
- Python (PyPI)
- Package
datasette- Disclosed
- 22.08.2023
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2023-154 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-7ch3-7pp7-7cpq - CC BY 4.0
Vulnerability history: datasette
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 08.2020 11.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 3
- Low 1
Disclosures per year
- 2020: 1
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 0
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