CVE-2021-28861

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-28861
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28861.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-28861
Aliases
Downstream
Related
Withdrawn
2023-05-03T00:00:00Z
Published
2022-08-23T01:15:07Z
Modified
2025-09-02T05:51:43.544273Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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."

Database specific 
{
    "isDisputed": true
}
References

Affected packages

Debian:11 / pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.3.5+dfsg-2+deb11u4

Affected versions

7.*

7.3.5+dfsg-2
7.3.5+dfsg-2+deb11u1
7.3.5+dfsg-2+deb11u2
7.3.5+dfsg-2+deb11u3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.3.10+dfsg-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:13 / pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.3.10+dfsg-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:14 / pypy3

Package

Name
pypy3
Purl
pkg:deb/debian/pypy3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7.3.10+dfsg-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:11 / python2.7

Package

Name
python2.7
Purl
pkg:deb/debian/python2.7?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.7.18-8
2.7.18-8+deb11u1
2.7.18-9
2.7.18-10
2.7.18-11
2.7.18-12
2.7.18-13
2.7.18-13.1~exp1
2.7.18-13.1
2.7.18-13.2

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:12 / python3.11

Package

Name
python3.11
Purl
pkg:deb/debian/python3.11?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.11.0~b4-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:11 / python3.9

Package

Name
python3.9
Purl
pkg:deb/debian/python3.9?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.9.2-1+deb11u2

Affected versions

3.*

3.9.2-1
3.9.2-1+deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/python/cpython

Affected ranges

Type
GIT
Repo
https://github.com/python/cpython
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e1ebdc52b8bd82a928398b0a75149552a723389a