🛡️ CVE-2023-43804 on PyPI (Root.io) — rootio-urllib3

Distribution advisory

This page covers CVE-2023-43804 as tracked by PyPI (Root.io), for the package rootio-urllib3. The fix is available in version 1.21.1+root.io.4; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: High — administrative rights are needed first.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: None.

Weakness class

ROOT-APP-PYPI-CVE-2023-43804 is classified as CWE-200: Exposure of Sensitive Information. Information that should stay internal is disclosed to someone who is not authorised to see it.

Affected software

ROOT-APP-PYPI-CVE-2023-43804 is recorded against 2 packages.

• rootio-urllib3 (fixed in 1.21.1+root.io.4)
• urllib3 (fixed in 1.21.1+aikido.4)

Timeline and source

Published on 23 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

Other advisories for this package

rootio-urllib3 has other advisories on record. If you are patching this one, these are worth checking on the same host:

• ROOT-APP-PYPI-CVE-2018-20060 (9.5 Critical, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2024-37891 (5.0 Medium, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2023-45803 (5.0 Medium, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2020-26137 (5.0 Medium, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2019-11324 (8.0 High, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2019-11236 (5.0 Medium, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2025-66471 (8.0 High, published 23 Jun 2026)
• ROOT-APP-PYPI-CVE-2018-25091 (5.0 Medium, published 23 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-200: Exposure of Sensitive Information) in other software:

• CVE-2023-41050 (6.8 Medium, published 13 Jul 2026)
• CVE-2022-24886 (2.0 Low, published 12 Jul 2026)
• CVE-2023-30776 (published 7 Jul 2026)
• CVE-2023-35625 (4.7 Medium, published 7 Jul 2026)
• CVE-2014-3517 (published 6 Jul 2026)
• CVE-2015-9543 (2.0 Low, published 6 Jul 2026)
• CVE-2015-8749 (published 6 Jul 2026)
• CVE-2016-3954 (published 6 Jul 2026)

CVE-2023-43804 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References