CVE-2021-28861 @ morris
Status
new
Priority
7.4
Match score
4.0
Risk
InfoLeak
Remote
priv:user
CVSS
7.4 HIGH
Reason
cpe: python; pkgs: python, python-babel, python-backports, python-backports-ssl_match_hostname, python-chardet, python-cllib; version: in-range: python-backports-ssl_match_hostname-3.5.0.1-1.el7, python-decorator-3.4.0-3.el7, python-javapackages-3.4.1-11.el7, python-lxml-3.2.1-4.el7, python-perf-3.10.0-962.3.2.lve1.5.89.el7, python-ply-3.4-11.el7; risk:info_disclosure
Created
2026-10-15T10:20:39Z
Updated
2026-10-20T10:18:47Z
Package interrogation (copy)
Run on the host — click to copy a command. RPM
| Package | Commands |
|---|---|
| python-backports-ssl_match_hostname-3.5.0.1-1.el7 | |
| python-decorator-3.4.0-3.el7 | |
| python-javapackages-3.4.1-11.el7 | |
| python-lxml-3.2.1-4.el7 | |
| python-perf-3.10.0-962.3.2.lve1.5.89.el7 | |
| python-ply-3.4-11.el7 | |
| python | |
| python-babel | |
| python-backports | |
| python-chardet | |
| python-cllib | |
| alt-python27-2.7.18-9.el7 | |
| alt-python27-alembic-0.8.3-3.el7 | |
| alt-python27-argparse-1.2.1-2.el7.cloudlinux | |
| alt-python27-babel-1.3-7.el7 | |
| alt-python27-beaker-1.5.4-10.el7 | |
| alt-python27-chardet-2.3.0-2.el7 | |
| alt-python27-cllib-3.4.44-1.el7.cloudlinux | |
| alt-python27-contextlib2-0.5.4-1.2.el7 | |
| alt-python27-crypto-2.6.1-1.el7 | |
| alt-python27-dateutil-1.4.1-6.el7.cloudlinux | |
| alt-python27-docopt-0.6.2-1.el7 | |
| alt-python27-editor-0.4-4.el7 | |
| alt-python27-future-0.17.0-2.el7 | |
| alt-python27-guppy-0.1.10-1.el7 | |
| alt-python27-jinja2-2.7.2-8.el7 | |
| alt-python27-jsonschema-2.6.0-1.el7 | |
| alt-python27-libs-2.7.18-9.el7 | |
| alt-python27-lprettytable-0.5-2.el7.cloudlinux | |
| alt-python27-lxml-3.2.4-1.el7 | |
| alt-python27-mako-0.7.3-1.el7 | |
| alt-python27-markupsafe-0.23-6.el7.cloudlinux.2 | |
| alt-python27-matplotlib-1.0.1-21.el7.cloudlinux.1 | |
| alt-python27-MySQL-common-1.2.5-1.el7.cloudlinux.2 | |
| alt-python27-MySQL-mariadb101-1.2.5-1.el7.cloudlinux.2 | |
| alt-python27-MySQL-mariadb10-1.2.5-1.el7.cloudlinux.2 | |
| alt-python27-MySQL-mariadb102-1.2.5-1.el7.cloudlinux.3 | |
| alt-python27-MySQL-mariadb103-1.2.5-1.el7.cloudlinux.4 | |
| alt-python27-MySQL-mariadb104-1.2.5-1.el7.cloudlinux.5 | |
| alt-python27-MySQL-mariadb105-1.2.5-1.el7.cloudlinux.5 | |
| alt-python27-MySQL-mariadb106-1.2.5-1.el7.cloudlinux.5 |
Inventory lookup
Search package inventory across systems, then return here. Create a ticket on systems the matcher missed.
Suggestions: python-backports-ssl_match_hostname · python-decorator · python-javapackages · python-lxml · python-perf · python-ply · python · python-babel · python-backports · python-chardet · python-cllib
| System | Matches | Ticket for CVE-2021-28861 | |
|---|---|---|---|
| morris | python-backports-ssl_match_hostname 3.5.0.1 | new open | |
| mufasa | python-backports-ssl_match_hostname 3.5.0.1 | new open |
Same product CVEs in your queue
Other open tickets that look like the same product. Closed tickets are omitted unless they are already pegged to this CVE.
| CVE | CVSS | KEV | Systems | Status | Matched | Already related | |
|---|---|---|---|---|---|---|---|
| CVE-2022-37454 | 9.8 | Archive, morris, mufasa | new | python-backports | — | ||
| CVE-2021-3518 | 8.8 | morris, mufasa | new | python | — | ||
| CVE-2021-3517 | 8.6 | morris, mufasa | new | python | — | ||
| CVE-2023-26604 | 7.8 | mufasa | new | python | — | ||
| CVE-2022-40304 | 7.8 | morris, mufasa | new | python | — | ||
| CVE-2022-0391 | 7.5 | Archive, Library, Matrix, Saiph, morris … | new | python-backports | — | ||
| CVE-2023-24329 | 7.5 | Archive, Library, Saiph, morris, mufasa | new | python-backports | — | ||
| CVE-2024-34459 | 7.5 | morris, mufasa | new | python | — | ||
| CVE-2022-23308 | 7.5 | morris, mufasa | new | python | — | ||
| CVE-2022-40303 | 7.5 | morris, mufasa | new | python | — | ||
| CVE-2022-48560 | 7.5 | Archive, Library, Matrix, Saiph, Silk … | new | python-backports | — | ||
| CVE-2022-45061 | 7.5 | Archive, Bullseye, Helios, Library, Saiph … | new | python-backports | — | ||
| CVE-2024-25062 | 7.5 | morris, mufasa | new | python | — | ||
| CVE-2018-20406 | 7.5 | morris, mufasa | new | python-decorator | — | ||
| CVE-2021-3737 | 7.5 | Helios | new | python | — |
Related CVE (same fix)
Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.
Host OS / kernel
OS
CloudLinux release 7.9 (Boris Yegorov)
(7.9)
· cloudlinux
Arch
x86_64
kernel_release
uname -r → 3.10.0-962.3.2.lve1.5.89.el7.x86_64kernel_version
uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.
Same CVE on other hosts
Open the ticket for this CVE on another system.
| System | Status | Priority | Updated | |
|---|---|---|---|---|
| mufasa | new | 7.4 | 2026-10-20T10:18:47Z | Open |
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."
Update status
Add note only
References
- https://bugs.python.org/issue43223
- https://github.com/python/cpython/pull/24848
- https://github.com/python/cpython/pull/93879
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TRINJE3INWDVIHIABW4L2NP3RUSK7BJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LTSPFIULY2GZJN3QYNFVM4JSU6H4D6J/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OABQ5CMPQETJLFHROAXDIDXCMDTNVYG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DISZAFSIQ7IAPAEQTC7G2Z5QUA2V2PSW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HPX4XHT2FGVQYLY2STT2MRVENILNZTTU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I3MQT5ZE3QH5PVDJMERTBOCILHK35CBE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFGV7P2PYFBMK32OKHCAC2ZPJQV5AUDF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KRGKPYA5YHIXQAMRIXO5DSCX7D4UUW4Q/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OKYE2DOI2X7WZXAWTQJZAXYIWM37HDCY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QLE5INSVJUZJGY5OJXV6JREXWD7UDHYN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S7G66SRWUM36ENQ3X6LAIG7HAB27D4XJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZEPOPUFC42KXXSLFPZ47ZZRGPOR7SQE/
NVD: CVE-2021-28861