There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.7, indicating it requires adjacent network access with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 10 products from python, from fedoraproject, from debian and 7 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2021-05-20T13:15:07.753
2025-12-18T12:15:54.153
Modified
CVSSv3.1: 5.7 (MEDIUM)
AV:A/AC:L/Au:S/C:P/I:N/A:N
5.1
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | python | python | < 2.7.18 | Yes |
| Application | python | python | < 3.6.13 | Yes |
| Application | python | python | < 3.7.10 | Yes |
| Application | python | python | < 3.8.8 | Yes |
| Application | python | python | < 3.9.3 | Yes |
| Application | python | python | 3.10.0 | Yes |
| Application | python | python | 3.10.0 | Yes |
| Application | python | python | 3.10.0 | Yes |
| Application | python | python | 3.10.0 | Yes |
| Application | python | python | 3.10.0 | Yes |
| Application | python | python | 3.10.0 | Yes |
| Operating System | fedoraproject | fedora | 32 | Yes |
| Operating System | fedoraproject | fedora | 33 | Yes |
| Operating System | fedoraproject | fedora | 34 | Yes |
| Operating System | debian | debian_linux | 9.0 | Yes |
| Application | redhat | software_collections | - | Yes |
| Operating System | redhat | enterprise_linux | 8.0 | Yes |
| Application | netapp | cloud_backup | - | Yes |
| Application | netapp | ontap_select_deploy_administration_utility | - | Yes |
| Application | netapp | snapcenter | - | Yes |
| Application | oracle | communications_cloud_native_core_binding_support_function | 1.10.0 | Yes |
| Application | oracle | zfs_storage_appliance_kit | 8.8 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For python's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.