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Malicious package

mvv6RubyGems

Advisory published Updated

mvv6 is a confirmed malicious RubyGems package (MAL-2026-8110) that executes malicious code on install (malicious version 0.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in mvv6 (RubyGems)

MAL-2026-8110
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall mvv6

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

b5551322ba795053466e1f1d788939e918ba7a026f1b5be2579ecd71c743369e
9ac7a3d81fa5ab723bbbfc83f3ceb3ef3d6da25802b97abf963a821f5f5ca2c1

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for mvv6 (version 0.0.1).

  2. If you installed it — respond

    Remove mvv6 from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If mvv6 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. mvv6 on RubyGems has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-02761RLUA-2026-08623

References

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks mvv6-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Explore

mvv6 (RubyGems) malicious package — MAL-2026-8110 | O3 Security