CVE-2025-64481
CVE-2025-64481 is a low-severity vulnerability with a CVSS 4.0 base score of 2.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.
Key facts
- Severity: Low (CVSS 4.0 base score 2.7)
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-38040
- Weakness: CWE-601
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2025-64481?
- 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.
- How severe is CVE-2025-64481?
- CVE-2025-64481 has a CVSS 4.0 base score of 2.7, rated low severity.
- Is CVE-2025-64481 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-64481?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-64481 have an EU (EUVD) identifier?
- Yes. CVE-2025-64481 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-38040.
- When was CVE-2025-64481 published?
- CVE-2025-64481 was published on 2025-11-07 and last updated on 2026-06-17.
References
- https://github.com/simonw/datasette/commit/f257ca6edb64848c3b04b54d41e347c54fe57c05
- https://github.com/simonw/datasette/issues/2429
- https://github.com/simonw/datasette/security/advisories/GHSA-w832-gg5g-x44m
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