In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
![]() |
DLA-3980-1 | python3.9 security update |
![]() |
EUVD-2021-16395 | In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses. |
![]() |
USN-4973-1 | Python vulnerability |
![]() |
USN-4973-2 | Python vulnerability |
![]() |
USN-6891-1 | Python vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-03T22:18:03.310Z
Reserved: 2021-04-01T00:00:00
Link: CVE-2021-29921

No data.

Status : Modified
Published: 2021-05-06T13:15:12.573
Modified: 2024-11-21T06:01:59.150
Link: CVE-2021-29921


No data.