DEBIAN-CVE-2021-28861

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2021-28861
Published: 23 Aug 2022, 01:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.4 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Aug 2022, 01:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

Description

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."

CVSS Metrics

  • v3.1•HIGH•Score: 7.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Affected Systems

  • debian•pypy3

    < 7.3.5+dfsg-2+deb11u4 | < 7.3.10+dfsg-1 | < 7.3.10+dfsg-1 | < 7.3.10+dfsg-1

  • debian•python2.7

    all

  • debian•python3.11

    < 3.11.0~b4-1

  • debian•python3.9

    < 3.9.2-1+deb11u2

References (1)