vulnerability
Amazon Linux AMI 2: CVE-2021-33503: Security patch for python-urllib3 (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Jun 29, 2021 | Jul 19, 2021 | May 20, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Jun 29, 2021
Added
Jul 19, 2021
Modified
May 20, 2026
Description
An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
Solution
amazon-linux-ami-2-upgrade-python-urllib3
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