Regular Expression Denial of Service in Addressable templates
Impact
Within the URI template implementation in Addressable, a maliciously crafted template may result in uncontrolled resource consumption, leading to denial of service when matched against a URI. In typical usage, templates would not normally be read from untrusted user input, but nonetheless, no previous security advisory for Addressable has cautioned against doing this. Users of the parsing capabilities in Addressable but not the URI template capabilities are unaffected.
Patches
The vulnerability was introduced in version 2.3.0 (previously yanked) and has been present in all subsequent versions up to, and including, 2.7.0. It is fixed in version 2.8.0.
Workarounds
The vulnerability can be avoided by only creating Template objects from trusted sources that have been validated not to produce catastrophic backtracking.
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Bumps addressable from 2.7.0 to 2.8.0. This update includes a security fix.
Vulnerabilities fixed
Sourced from The GitHub Security Advisory Database.
... (truncated)
Changelog
Sourced from addressable's changelog.
Commits
6469a23
Updating gemspec again2433638
Merge branch 'main' of github.com:sporkmonger/addressable into maine9c76b8
Merge pull request #378 from ashmaroli/flat-map56c5cf7
Update the gemspecc1fed1c
Require a non-vulnerable rake0d8a312
Adding note about ReDoS vulnerability89c7613
Merge branch 'template-regexp' into maincf8884f
Note about alias fixbb03f71
Merge pull request #371 from charleystran/add_missing_encode_component_doc_entry6d1d809
Adding note about :compacted normalizationDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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