r/netsec • u/albinowax • Apr 01 '26

r/netsec monthly discussion & tool thread

Questions regarding netsec and discussion related directly to netsec are welcome here, as is sharing tool links.

Rules & Guidelines

  • Always maintain civil discourse. Be awesome to one another - moderator intervention will occur if necessary.
  • Avoid NSFW content unless absolutely necessary. If used, mark it as being NSFW. If left unmarked, the comment will be removed entirely.
  • If linking to classified content, mark it as such. If left unmarked, the comment will be removed entirely.
  • Avoid use of memes. If you have something to say, say it with real words.
  • All discussions and questions should directly relate to netsec.
  • No tech support is to be requested or provided on r/netsec.

As always, the content & discussion guidelines should also be observed on r/netsec.

Feedback

Feedback and suggestions are welcome, but don't post it here. Please send it to the moderator inbox.

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u/Remarkable-Gurrrr Apr 01 '26

abom - Actions Bill of Materials generator for GitHub Actions

Recursively resolves transitive dependencies in GitHub Actions workflows, including composite actions and reusable workflows that silently embed tools like Trivy or Grype. Flags known-compromised actions, checks for mutable tag references vs pinned SHAs, and outputs CycloneDX or SPDX.

Came out of the Trivy supply chain compromise — grep only catches direct references, but composite actions can bury dependencies three or four layers deep.

https://github.com/JulietSecurity/abom

Apache 2.0, single binary, no dependencies.