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F5F5:K23456112HistoryNov 26, 2021 - 12:00 a.m.
K23456112 : Python urllib3 vulnerability CVE-2021-33503
2021-11-2600:00:00
my.f5.com
60
Security Advisory 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. (CVE-2021-33503)
Impact
There is no impact; F5 products are not affected by this vulnerability.
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