Which versions of bundief are malicious?

The following RubyGems versions of bundief are flagged malicious: 1.0.0, 1.0.97150. Treat any of these as compromised.

How do I remediate bundief if I installed it?

Remove bundief 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.

I already installed bundief — how do I know if it already compromised me?

If bundief 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.

Is bundief part of a known attack campaign?

Yes — bundief is associated with the RLMA-2026-07604 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find bundief across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for bundief (2 malicious versions).

Malicious package

bundiefRubyGems

Advisory published Sep 22, 2026Updated Sep 24, 2026

bundief is a confirmed malicious RubyGems package (MAL-2026-16918) that executes malicious code on install (malicious versions 1.0.0, 1.0.97150). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in bundief (RubyGems)

MAL-2026-16918

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

gem uninstall bundief

Malicious versions

2 flagged

1.0.01.0.97150

Indicators of compromise (SHA-256)

9402495cd1703f0c290edc3051ecd1d1a808bc40fbb92169c6af781ea1d48242

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for bundief (2 malicious versions).
If you installed it — respond
Remove bundief 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.
Did it already run?
If bundief 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. bundief on RubyGems has been identified as a malicious package (versions 1.0.0, 1.0.97150 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-07604

Credits

ReversingLabs · finder

Detect & block this

O3 blocks bundief-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.

Malware detection Runtime egress monitoring

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