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Product · nektos

act

4 known vulnerabilities.

act at a glance

Last 12 months
3
Critical · all time
0
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
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All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • High 8.8
    CVE-2026-76847

    act 0.2.81 through 0.2.89 Missing Authorization in the Artifacts V4 Backend

    act starts an HTTP Artifacts V4 backend whenever a workflow uses actions/upload-artifact@v4 or actions/download-artifact@v4. The control-plane RPCs of that backend, including CreateArtifact, GetSignedArtifactURL, ListArtifacts, FinalizeArtifact and DeleteArti…

    nektos act
  • High 8.2
    CVE-2026-34042

    act: actions/cache server allows malicious cache injection

    act is a project which allows for local running of github actions. Prior to version 0.2.86, act's built in actions/cache server listens to connections on all interfaces and allows anyone who can connect to it including someone anywhere on the internet to crea…

    nektos act github.com/nektos/act Go
  • High 7.7
    CVE-2026-34041

    act: Unrestricted set-env and add-path command processing enables environment injection

    act is a project which allows for local running of github actions. Prior to version 0.2.86, act unconditionally processes the deprecated ::set-env:: and ::add-path:: workflow commands, which was disabled due to environment injection risks. When a workflow ste…

    nektos act github.com/nektos/act Go
  • High 8.0
    CVE-2023-22726

    Unrestricted file upload leading to privilege escalation in act

    act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Act…

    nektos act github.com/nektos/act Go