Which versions of chmid9500x539919 are malicious?

The following RubyGems versions of chmid9500x539919 are flagged malicious: 0.0.1. Treat any of these as compromised.

How do I remediate chmid9500x539919 if I installed it?

Remove chmid9500x539919 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 chmid9500x539919 — how do I know if it already compromised me?

If chmid9500x539919 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 chmid9500x539919 part of a known attack campaign?

Yes — chmid9500x539919 is associated with the RLMA-2026-02250 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 chmid9500x539919 across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chmid9500x539919 (version 0.0.1).

Malicious package

chmid9500x539919RubyGems

Advisory published Jul 7, 2026Updated Jul 23, 2026

chmid9500x539919 is a confirmed malicious RubyGems package (MAL-2026-7599) 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 chmid9500x539919 (RubyGems)

MAL-2026-7599

Immediate action

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

gem uninstall chmid9500x539919

Malicious versions

1 flagged

0.0.1

Indicators of compromise (SHA-256)

989f6fe9561378609adb0609483549f385c54b2d2a321e489c9dd268a9a5bfb6

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for chmid9500x539919 (version 0.0.1).
If you installed it — respond
Remove chmid9500x539919 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 chmid9500x539919 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. chmid9500x539919 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-2026-02250

Credits

ReversingLabs · finder

Detect & block this

O3 blocks chmid9500x539919-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

Explore

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