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osvGoogleOSV:GHSA-Q2Q7-5PP4-W6PG
HistoryJun 01, 2021 - 9:19 p.m.

Catastrophic backtracking in URL authority parser when passed URL containing many @ characters

2021-06-0121:19:32
Google
osv.dev
22

0.003 Low

EPSS

Percentile

69.2%

JSON

Impact

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.

Patches

The issue has been fixed in urllib3 v1.26.5.

References

For more information

If you have any questions or comments about this advisory:

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0.003 Low

EPSS

Percentile

69.2%

JSON
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