synced 10 MIN AGO
01 Record

CVE-2023-24329

An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters.

HighPUBLISHEDCNA: mitre
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

02 Description

An issue in the urllib.parse component of Python before 3.11.4 allows attackers to bypass blocklisting methods by supplying a URL that starts with blank characters.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
20.45% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 97.2% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-10-14.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-02-17 00:00Z3 YR AGO
Last updated
2026-10-14 22:32Z14 DAYS AGO
Reserved
2023-01-23
Assigning CNA
mitre
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.2
Document digest
0264e1fd4f116fee782a6189abdaa4cfc6f7c78c976ac2f06812d7542c37f2c5

05 Affected products

VendorProductVersionsPlatforms
fedoraprojectfedoraNot specified—
netappactive_iq_unified_managerNot specified—
pythonpythonNot specified—
redhatenterprise_linuxNot specified—
redhatrhel_ausNot specified—
redhatrhel_e4sNot specified—
redhatrhel_elsNot specified—
redhatrhel_eusNot specified—
redhatrhel_software_collectionsNot specified—
redhatrhel_tusNot specified—
redhatrhev_hypervisorNot specified—

06 References

07 Fixed in

AlmaLinux 8

  • babel
    Fixed in 2.5.1-10.module_el8.6.0+2781+fed64c13
  • platform-python
    Fixed in 3.6.8-51.el8_8.1.alma
  • platform-python-debug
    Fixed in 3.6.8-51.el8_8.1.alma
  • platform-python-devel
    Fixed in 3.6.8-51.el8_8.1.alma
  • python-nose-docs
    Fixed in 1.3.7-31.module_el8.6.0+2781+fed64c13
  • python-psycopg2-doc
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.5-7.module_el8.6.0+2781+fed64c13
    • Affected before 2.7.5-7.module_el8.6.0+3162+01a09e5a
  • python-sqlalchemy-doc
    Fixed in 1.3.2-2.module_el8.6.0+2781+fed64c13
  • python2
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-Cython
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.28.1-7.module_el8.6.0+2781+fed64c13
    • Affected before 0.28.1-7.module_el8.6.0+3162+01a09e5a
  • python2-PyMySQL
    Fixed in 0.8.0-10.module_el8.6.0+2781+fed64c13
  • python2-attrs
    Fixed in 17.4.0-10.module_el8.6.0+2781+fed64c13
  • python2-babel
    Fixed in 2.5.1-10.module_el8.6.0+2781+fed64c13
  • python2-backports
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1.0-16.module_el8.6.0+2781+fed64c13
    • Affected before 1.0-16.module_el8.6.0+3162+01a09e5a
  • python2-backports-ssl_match_hostname
    Fixed in 3.5.0.1-12.module_el8.6.0+2781+fed64c13
  • python2-bson
    Fixed

    A version is affected if any line below covers it.

    • Affected before 3.7.0-1.module_el8.6.0+2781+fed64c13
    • Affected before 3.7.0-1.module_el8.6.0+3162+01a09e5a
  • python2-chardet
    Fixed in 3.0.4-10.module_el8.6.0+2781+fed64c13
  • python2-coverage
    Fixed

    A version is affected if any line below covers it.

    • Affected before 4.5.1-4.module_el8.6.0+2781+fed64c13
    • Affected before 4.5.1-4.module_el8.6.0+3162+01a09e5a
  • python2-debug
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-devel
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-dns
    Fixed in 1.15.0-10.module_el8.6.0+2781+fed64c13
  • python2-docs
    Fixed in 2.7.16-2.module_el8.6.0+2781+fed64c13
  • python2-docs-info
    Fixed in 2.7.16-2.module_el8.6.0+2781+fed64c13
  • python2-docutils
    Fixed in 0.14-12.module_el8.6.0+2781+fed64c13
  • python2-funcsigs
    Fixed in 1.0.2-13.module_el8.6.0+2781+fed64c13
  • python2-idna
    Fixed in 2.5-7.module_el8.6.0+2781+fed64c13
  • python2-ipaddress
    Fixed in 1.0.18-6.module_el8.6.0+2781+fed64c13
  • python2-jinja2
    Fixed in 2.10-9.module_el8.6.0+2781+fed64c13
  • python2-libs
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-lxml
    Fixed

    A version is affected if any line below covers it.

    • Affected before 4.2.3-6.module_el8.6.0+2781+fed64c13
    • Affected before 4.2.3-6.module_el8.6.0+3162+01a09e5a
  • python2-markupsafe
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.23-19.module_el8.6.0+2781+fed64c13
    • Affected before 0.23-19.module_el8.6.0+3162+01a09e5a
  • python2-mock
    Fixed in 2.0.0-13.module_el8.6.0+2781+fed64c13
  • python2-nose
    Fixed in 1.3.7-31.module_el8.6.0+2781+fed64c13
  • python2-numpy
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1:1.14.2-16.module_el8.6.0+2781+fed64c13
    • Affected before 1:1.14.2-16.module_el8.6.0+3162+01a09e5a
  • python2-numpy-doc
    Fixed in 1:1.14.2-16.module_el8.6.0+2781+fed64c13
  • python2-numpy-f2py
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1:1.14.2-16.module_el8.6.0+2781+fed64c13
    • Affected before 1:1.14.2-16.module_el8.6.0+3162+01a09e5a
  • python2-pip
    Fixed in 9.0.3-19.module_el8.6.0+2781+fed64c13
  • python2-pip-wheel
    Fixed in 9.0.3-19.module_el8.6.0+2781+fed64c13
  • python2-pluggy
    Fixed in 0.6.0-8.module_el8.6.0+2781+fed64c13
  • python2-psycopg2
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.5-7.module_el8.6.0+2781+fed64c13
    • Affected before 2.7.5-7.module_el8.6.0+3162+01a09e5a
  • python2-psycopg2-debug
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.5-7.module_el8.6.0+2781+fed64c13
    • Affected before 2.7.5-7.module_el8.6.0+3162+01a09e5a

137 further packages in AlmaLinux 8 not shown (first 40 listed).

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • python-unversioned-command
    Fixed in 3.9.16-1.el9_2.1
  • python3
    Fixed in 3.9.16-1.el9_2.1
  • python3-debug
    Fixed in 3.9.16-1.el9_2.1
  • python3-devel
    Fixed in 3.9.16-1.el9_2.1
  • python3-idle
    Fixed in 3.9.16-1.el9_2.1
  • python3-libs
    Fixed in 3.9.16-1.el9_2.1
  • python3-test
    Fixed in 3.9.16-1.el9_2.1
  • python3-tkinter
    Fixed in 3.9.16-1.el9_2.1
  • python3.11
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-debug
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-devel
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-idle
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-libs
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-test
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-tkinter
    Fixed in 3.11.2-2.el9_2.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • babel
    Fixed in 2.5.1-10.module_el8.6.0+2781+fed64c13
  • platform-python
    Fixed in 3.6.8-51.el8_8.1.alma
  • platform-python-debug
    Fixed in 3.6.8-51.el8_8.1.alma
  • platform-python-devel
    Fixed in 3.6.8-51.el8_8.1.alma
  • python-nose-docs
    Fixed in 1.3.7-31.module_el8.6.0+2781+fed64c13
  • python-psycopg2-doc
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.5-7.module_el8.6.0+2781+fed64c13
    • Affected before 2.7.5-7.module_el8.6.0+3162+01a09e5a
  • python-sqlalchemy-doc
    Fixed in 1.3.2-2.module_el8.6.0+2781+fed64c13
  • python2
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-Cython
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.28.1-7.module_el8.6.0+2781+fed64c13
    • Affected before 0.28.1-7.module_el8.6.0+3162+01a09e5a
  • python2-PyMySQL
    Fixed in 0.8.0-10.module_el8.6.0+2781+fed64c13
  • python2-attrs
    Fixed in 17.4.0-10.module_el8.6.0+2781+fed64c13
  • python2-babel
    Fixed in 2.5.1-10.module_el8.6.0+2781+fed64c13
  • python2-backports
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1.0-16.module_el8.6.0+2781+fed64c13
    • Affected before 1.0-16.module_el8.6.0+3162+01a09e5a
  • python2-backports-ssl_match_hostname
    Fixed in 3.5.0.1-12.module_el8.6.0+2781+fed64c13
  • python2-bson
    Fixed

    A version is affected if any line below covers it.

    • Affected before 3.7.0-1.module_el8.6.0+2781+fed64c13
    • Affected before 3.7.0-1.module_el8.6.0+3162+01a09e5a
  • python2-chardet
    Fixed in 3.0.4-10.module_el8.6.0+2781+fed64c13
  • python2-coverage
    Fixed

    A version is affected if any line below covers it.

    • Affected before 4.5.1-4.module_el8.6.0+2781+fed64c13
    • Affected before 4.5.1-4.module_el8.6.0+3162+01a09e5a
  • python2-debug
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-devel
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-dns
    Fixed in 1.15.0-10.module_el8.6.0+2781+fed64c13
  • python2-docs
    Fixed in 2.7.16-2.module_el8.6.0+2781+fed64c13
  • python2-docs-info
    Fixed in 2.7.16-2.module_el8.6.0+2781+fed64c13
  • python2-docutils
    Fixed in 0.14-12.module_el8.6.0+2781+fed64c13
  • python2-funcsigs
    Fixed in 1.0.2-13.module_el8.6.0+2781+fed64c13
  • python2-idna
    Fixed in 2.5-7.module_el8.6.0+2781+fed64c13
  • python2-ipaddress
    Fixed in 1.0.18-6.module_el8.6.0+2781+fed64c13
  • python2-jinja2
    Fixed in 2.10-9.module_el8.6.0+2781+fed64c13
  • python2-libs
    Fixed in 2.7.18-13.module_el8.8.0+3580+eeda85da.1.alma
  • python2-lxml
    Fixed

    A version is affected if any line below covers it.

    • Affected before 4.2.3-6.module_el8.6.0+2781+fed64c13
    • Affected before 4.2.3-6.module_el8.6.0+3162+01a09e5a
  • python2-markupsafe
    Fixed

    A version is affected if any line below covers it.

    • Affected before 0.23-19.module_el8.6.0+2781+fed64c13
    • Affected before 0.23-19.module_el8.6.0+3162+01a09e5a
  • python2-mock
    Fixed in 2.0.0-13.module_el8.6.0+2781+fed64c13
  • python2-nose
    Fixed in 1.3.7-31.module_el8.6.0+2781+fed64c13
  • python2-numpy
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1:1.14.2-16.module_el8.6.0+2781+fed64c13
    • Affected before 1:1.14.2-16.module_el8.6.0+3162+01a09e5a
  • python2-numpy-doc
    Fixed in 1:1.14.2-16.module_el8.6.0+2781+fed64c13
  • python2-numpy-f2py
    Fixed

    A version is affected if any line below covers it.

    • Affected before 1:1.14.2-16.module_el8.6.0+2781+fed64c13
    • Affected before 1:1.14.2-16.module_el8.6.0+3162+01a09e5a
  • python2-pip
    Fixed in 9.0.3-19.module_el8.6.0+2781+fed64c13
  • python2-pip-wheel
    Fixed in 9.0.3-19.module_el8.6.0+2781+fed64c13
  • python2-pluggy
    Fixed in 0.6.0-8.module_el8.6.0+2781+fed64c13
  • python2-psycopg2
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.5-7.module_el8.6.0+2781+fed64c13
    • Affected before 2.7.5-7.module_el8.6.0+3162+01a09e5a
  • python2-psycopg2-debug
    Fixed

    A version is affected if any line below covers it.

    • Affected before 2.7.5-7.module_el8.6.0+2781+fed64c13
    • Affected before 2.7.5-7.module_el8.6.0+3162+01a09e5a

137 further packages in CloudLinux 8 not shown (first 40 listed).

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • python-unversioned-command
    Fixed in 3.9.16-1.el9_2.1
  • python3
    Fixed in 3.9.16-1.el9_2.1
  • python3-debug
    Fixed in 3.9.16-1.el9_2.1
  • python3-devel
    Fixed in 3.9.16-1.el9_2.1
  • python3-idle
    Fixed in 3.9.16-1.el9_2.1
  • python3-libs
    Fixed in 3.9.16-1.el9_2.1
  • python3-test
    Fixed in 3.9.16-1.el9_2.1
  • python3-tkinter
    Fixed in 3.9.16-1.el9_2.1
  • python3.11
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-debug
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-devel
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-idle
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-libs
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-test
    Fixed in 3.11.2-2.el9_2.1
  • python3.11-tkinter
    Fixed in 3.11.2-2.el9_2.1

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • pypy3
    Fixed in 7.3.11+dfsg-2+deb12u2
  • python3.11
    Fixed in 3.11.2-6+deb12u2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • pypy3
    Fixed in 7.3.12+dfsg-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • pypy3
    Fixed in 7.3.12+dfsg-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • python2.7
    Fixed in 2.7.18-1~20.04.7
  • python3.8
    Fixed in 3.8.10-0ubuntu1~20.04.8

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • python2.7
    Fixed in 2.7.18-13ubuntu1.5
  • python3.10
    Fixed in 3.10.6-1~22.04.2ubuntu1.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • python2.7
    Fixed in 2.7.6-8ubuntu0.6+esm15
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • python3.4
    No fix yet
  • python3.5
    Fixed in 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • python2.7
    Fixed in 2.7.12-1ubuntu0~16.04.18+esm5
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • python3.5
    Fixed in 3.5.2-2ubuntu0~16.04.13+esm8
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • python2.7
    Fixed in 2.7.17-1~18.04ubuntu1.13
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • python3.6
    Fixed in 3.6.9-1~18.04ubuntu1.13
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • python3.7
    Fixed in 3.7.5-2ubuntu1~18.04.2+esm3
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • python3.8
    Fixed in 3.8.0-3ubuntu1~18.04.2+esm2
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • python3.9
    Fixed in 3.9.5-3ubuntu0~20.04.1+esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 22.04 LTS

  • python3.11
    Fixed in 3.11.0~rc1-1~22.04.1~esm1
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.