Datasette 1.0 alpha series leaks names of databases and tables to unauthenticated users

published 2023-08-22 3 y ago modified 2026-06-17 4 mo ago also GHSA-7ch3-7pp7-7cpq , PYSEC-2023-154 , EUVD-2023-0061

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

Datasette is an open source multi-tool for exploring and publishing data. 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. Datasette 1.0a4 has a fix for this issue. 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. This issue is patched in version 1.0a4.

Patch / fix

fixed in 1 links 1

pypi datasette 1.0a4

github.com/simonw/datasette@01e0558 commit

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 y ago (2024-10-02)

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
OSV	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
GitHub	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
pypi	datasette	>=1.0a0, <1.0a4 all versions	1.0a4

Affected products

simonw datasette

Classification

Weakness

CWE-213 Exposure of Sensitive Information Due to Incompatible Policies
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

github.com /simonw/datasette/commit/01e0558825b8f7ec17d3b691aa072daf122fcc74
web, patch
github.com /simonw/datasette/security/advisories/GHSA-7ch3-7pp7-7cpq
web, mitigation, vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2023-40570
advisory
github.com /pypa/advisory-database/tree/main/vulns/datasette/PYSEC-2023-154.yaml
web
github.com /simonw/datasette
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary