PYSEC-2021-108

vendorUSosv
view advisory published 2021-06-29Licence: CC-BY-4.0

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.

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2021-33503UShigh7.5—
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 catast…
02

references

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