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path-to-regexp

3 known vulnerabilities.

path-to-regexp at a glance

Last 12 months
3
Critical · all time
0
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Public exploit · all time
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3 results · Feed

  • Medium 5.9

    path-to-regexp vulnerable to Regular Expression Denial of Service via multiple wildcards

    Impact: When using multiple wildcards, combined with at least one parameter, a regular expression can be generated that is vulnerable to ReDoS. This backtracking vulnerability requires the second wildcard to be somewhere other than the end of the path. Unsafe…

  • High 7.5

    path-to-regexp vulnerable to Denial of Service via sequential optional groups

    Impact: A bad regular expression is generated any time you have multiple sequential optional groups (curly brace syntax), such as `{a}{b}{c}:z`. The generated regex grows exponentially with the number of groups, causing denial of service. Patches: Fixed in ve…

  • High 7.5

    path-to-regexp vulnerable to Regular Expression Denial of Service via multiple route parameters

    Impact: A bad regular expression is generated any time you have three or more parameters within a single segment, separated by something that is not a period (.). For example, /:a-:b-:c or /:a-:b-:c-:d. The backtrack protection added in path-to-regexp@0.1.12 …