Module PolynomialReDoSConfig

A taint-tracking configuration for reasoning about polynomial regular expression denial-of-service attacks.

Import path

import semmle.javascript.security.regexp.PolynomialReDoSQuery

fieldFlowBranchLimit	Gets the virtual dispatch branching limit when calculating field flow. This can be overridden to a smaller value to improve performance (a value of 0 disables field flow), or a larger value to get more results.
getAFeature	Gets a data flow configuration feature to add restrictions to the set of valid flow paths.
getASelectedSinkLocation	Gets a location that will be associated with the given `sink` in a diff-informed query that uses this configuration (see `observeDiffInformedIncrementalMode`). By default, this is the location of the sink itself, but this predicate should include any locations that are reported as the primary-location of the query or as an additional location (“$@” interpolation). For a query that doesn’t report the sink at all, this predicate can be `none()`.
isAdditionalFlowStep	Holds if data may flow from `node1` to `node2` in addition to the normal data-flow steps.
isBarrier	Holds if data flow through `node` is prohibited. This completely removes `node` from the data flow graph.
isSink	Holds if `sink` is a relevant data flow sink.
isSource	Holds if `source` is a relevant data flow source.
observeDiffInformedIncrementalMode	Holds if sources and sinks should be filtered to only include those that may lead to a flow path with either a source or a sink in the location range given by `AlertFiltering`. This only has an effect when running in diff-informed incremental mode.