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Guillaume Nodet commented on MNG-8569: -------------------------------------- > If you're selecting the lowest or a default version, would this be just the > same as specifying that version explicitly? Yes if you're using an open range. No if the range is closed such as {{[2.1,3]}}. > Also, the reason developers use ranges is generally to automatically pick up > the latest release, possibly within a major version, without having to notice > it's been released and change their code, so I'm not sure anyone will really > want the lowest version. Yes, I'm mostly focusing on restricting the range to a list of compatible versions. I think that's a valid use case. > Deprecate and remove version ranges > ----------------------------------- > > Key: MNG-8569 > URL: https://issues.apache.org/jira/browse/MNG-8569 > Project: Maven > Issue Type: Improvement > Reporter: Elliotte Rusty Harold > Priority: Critical > > To protect Maven users, we should eliminate, or at the very least warn, when > version ranges are used in dependency elements. See > [https://jlbp.dev/JLBP-14] for the rationale. tldr; version ranges make > projects vulnerable to malicious changes of ownership in dependencies that > can lead to remotely exploitable arbitrary code execution. I'd rate this > about a 9.0 on the severity scale. > I don't know of an attack using this vector in Java (yet) but it has > been used multiple times in other ecosystems to steal bitcoins and > install malware. Java has been lucky so far, but we are by no means > immune to it. > Since this is a compatibility breaking change, which I don't take likely but > IMHO is worth it in this case, use a multi-step process: > # Discourage this in the docs for version ranges, especially the POM > reference. > # Warn about this in the build when version ranges are encountered. > # Formally deprecate the relevant code in the repo. (Might not be necessary.) > # Add a switch (system property) to disable version ranges. Switch is off by > default. > # Turn the switch on by default. > # Remove the switch. > This might take a few years, so let's start now. It's also possible an active > attack will push us to do this overnight. If we start now, maybe we'll be > lucky enough to avoid emergency responses in the future. > > -- This message was sent by Atlassian Jira (v8.20.10#820010)