CVE-2021-3426
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I. Basic Information for CVE-2021-3426
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Python 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Python是Python基金会的一套开源的、面向对象的程序设计语言。该语言具有可扩展、支持模块和包、支持多种平台等特点。 Python 存在路径遍历漏洞，该漏洞允许通过pydoc公开信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | python | python 3.8.9, python 3.9.3, python 3.10.0a7 | - |
II. Public POCs for CVE-2021-3426
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.gentoo.org/glsa/202104-04vendor-advisory
- Oh noes!vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3426
Same Patch Batch · n/a · 2021-05-20 · 45 CVEs total
| CVE-2021-23386 | 7.7 HIGH | Remote Memory Exposure |
| CVE-2021-28111 | Draege X-Dock 信任管理问题漏洞 | |
| CVE-2021-29659 | ownCloud 安全漏洞 | |
| CVE-2021-3480 | slapi-nis 代码问题漏洞 | |
| CVE-2021-27457 | Emerson Rosemount X-STREAM Gas Analyzer 加密问题漏洞 | |
| CVE-2020-15522 | Bouncy Castle BC 竞争条件问题漏洞 | |
| CVE-2021-27467 | Emerson Rosemount X-STREAM Gas Analyzer 安全漏洞 | |
| CVE-2021-27465 | Emerson Rosemount X-STREAM Gas Analyzer 跨站脚本漏洞 | |
| CVE-2021-27463 | Emerson Rosemount X-STREAM Gas Analyzer 安全漏洞 | |
| CVE-2021-27459 | Emerson Rosemount X-STREAM Gas Analyzer 代码问题漏洞 | |
| CVE-2020-24395 | Homee Brain Cube 数据伪造问题漏洞 | |
| CVE-2020-24396 | Homee Brain Cube 安全漏洞 | |
| CVE-2021-28112 | Draege X-Dock 安全漏洞 | |
| CVE-2021-3438 | HP 多款产品缓冲区错误漏洞 | |
| CVE-2021-27434 | Siemens SIMATIC OPC UA 信息泄露漏洞 | |
| CVE-2021-25930 | Opennms Group OpenNMS 跨站请求伪造漏洞 | |
| CVE-2021-25929 | Opennms Group OpenNMS 跨站脚本漏洞 | |
| CVE-2020-21053 | FusionPBX 跨站脚本漏洞 | |
| CVE-2021-25931 | Opennms Group OpenNMS 跨站请求伪造漏洞 | |
| CVE-2021-25933 | Opennms Group OpenNMS 跨站脚本漏洞 |
Showing top 20 of 45 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
- CVE-2026-8276
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Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-200
- CVE-2026-42333
quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
Activity Logs, User Activity Tracking, Multisite Activity Lo - CVE-2026-42456
AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (ID - CVE-2026-41520
Cillium exposes sensitive information included in the cilium - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro
V. Comments for CVE-2021-3426
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