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CVE-2021-29921

🗓️ 06 May 2021 00:00:00Reported by mitreType 
cve
 cve🔗 web.nvd.nist.gov📰️ 11 Media mentions👁 5102 Views

Python ipaddress library vulnerability in handling leading zero characters in IP address string, allowing bypass of access control based on IP addresse

Related
Detection
Refs
Social
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Cloud Private is vulnerable to server-side request forgery due to Python (CVE-2021-29921)
20 May 202213:02
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerabilities in Python, Tornado, and Urllib3 affect IBM Spectrum Protect Plus Microsoft File Systems Backup and Restore
28 Jun 202120:41
–ibm
Tenable Nessus		Amazon Linux 2 : python38 (ALASPYTHON3.8-2023-009)
27 Sep 202300:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0262: python38:3.8 and python38-devel:3.8 (ALINUX3-SA-2024:0262)
14 May 202500:00
–nessus
Tenable Nessus		CentOS 8 : python39:3.9 and python39-devel:3.9 (CESA-2021:4160)
11 Nov 202100:00
–nessus
Tenable Nessus		CentOS 8 : python38:3.8 and python38-devel:3.8 (CESA-2021:4162)
11 Nov 202100:00
–nessus
Tenable Nessus		Debian dla-3980 : idle-python3.9 - security update
2 Dec 202400:00
–nessus
Tenable Nessus		EulerOS 2.0 SP9 : python-pip (EulerOS-SA-2022-2740)
14 Nov 202200:00
–nessus
Tenable Nessus		EulerOS 2.0 SP9 : python-pip (EulerOS-SA-2022-2775)
14 Nov 202200:00
–nessus
Tenable Nessus		EulerOS 2.0 SP10 : python-pip (EulerOS-SA-2022-2828)
21 Dec 202200:00
–nessus
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03 Nov 2025 22:15Current
9.3High risk
Vulners AI Score9.3
CVSS 27.5
CVSS 3.19.8
EPSS0.02048
cve-2021-29921pythonipaddressvulnerabilitysecurityaccess controlnvd
5102