Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states "Warning: http.server is not recommended for production. It only implements basic security checks."
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3966-1 | pypy3 security update |
Debian DLA |
DLA-3980-1 | python3.9 security update |
Ubuntu USN |
USN-5629-1 | Python vulnerability |
Ubuntu USN |
USN-5888-1 | Python vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 03 Nov 2025 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2025-11-03T21:44:41.631Z
Reserved: 2021-03-19T00:00:00.000Z
Link: CVE-2021-28861
No data.
Status : Modified
Published: 2022-08-23T01:15:07.617
Modified: 2025-11-03T22:15:47.860
Link: CVE-2021-28861
OpenCVE Enrichment
No data.
Debian DLA
Ubuntu USN