CVE-2025-64481 json
Open redirect endpoint in Datasette
published last yr. modified 4mo ago also EUVD-2025-38040 , GHSA-w832-gg5g-x44m , PYSEC-2025-73
- cvss
- 2.7
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
Summary
Datasette is an open source multi-tool for exploring and publishing data. In versions 0.65.1 and below and 1.0a0 through 1.0a19, deployed instances of Datasette include an open redirect vulnerability. Hits to the path //example.com/foo/bar/ (the trailing slash is required) will redirect the user to https://example.com/foo/bar. This problem has been patched in both Datasette 0.65.2 and 1.0a21. To workaround this issue, if Datasette is running behind a proxy, that proxy could be configured to replace // with / in incoming request URLs.
Patch / fix
- pypi datasette 0.65.2, 1.0a21
- datasette datasette 0.65.2, 1.0a20
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 11mo ago
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U |
| CNA | 4.0 | 2.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | datasette | <0.65.2 >=1.0a0, <1.0a21 |
0.65.2 1.0a21 |
Affected products
- simonw datasette
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
References
-
github.com
/simonw/datasette/commit/f257ca6edb64848c3b04b54d41e347c54fe57c05
web, patch
-
github.com
/simonw/datasette/security/advisories/GHSA-w832-gg5g-x44m
web, advisory
-
github.com
/simonw/datasette/issues/2429
web, report
-
nvd.nist.gov
/vuln/detail/CVE-2025-64481
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/datasette/PYSEC-2025-73.yaml
web
-
github.com
/simonw/datasette
package
Sources
- CVE List CVE-2025-64481
- GitHub Advisory GHSA-w832-gg5g-x44m
- NVD CVE-2025-64481
- OSV PYSEC-2025-73
Fencer Intel 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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.