Which versions of @tslogger/pino-pretty-logger are malicious?

The following npm versions of @tslogger/pino-pretty-logger are flagged malicious: 1.1.0. Treat any of these as compromised.

How do I remediate @tslogger/pino-pretty-logger if I installed it?

Remove @tslogger/pino-pretty-logger 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 @tslogger/pino-pretty-logger — how do I know if it already compromised me?

If @tslogger/pino-pretty-logger 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 @tslogger/pino-pretty-logger part of a known attack campaign?

Yes — @tslogger/pino-pretty-logger is associated with the RLMA-2026-04796, RLUA-2026-05938 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 @tslogger/pino-pretty-logger across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @tslogger/pino-pretty-logger (version 1.1.0).

Malicious package

@tslogger/pino-pretty-loggernpm

Advisory published Jul 7, 2026Updated Sep 1, 2026

@tslogger/pino-pretty-logger is a confirmed malicious npm package (MAL-2026-7099) that executes malicious code on install (malicious version 1.1.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @tslogger/pino-pretty-logger (npm)

MAL-2026-7099

Immediate action

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

npm uninstall @tslogger/pino-pretty-logger

Malicious versions

1 flagged

1.1.0

Indicators of compromise (SHA-256)

8a071ea3bf83be9ab8cd3dac20dfe772656c4fe96f48606f7f7e5bcbe77013d7

9a467c6e6f80eaa54bca36a8a0f74b9ac3f1464aa6923194788a091aa45c644f

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @tslogger/pino-pretty-logger (version 1.1.0).
If you installed it — respond
Remove @tslogger/pino-pretty-logger 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 @tslogger/pino-pretty-logger 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. @tslogger/pino-pretty-logger on npm has been identified as a malicious package (version 1.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-04796RLUA-2026-05938

References

Credits

ReversingLabs · finder

Detect & block this

O3 blocks @tslogger/pino-pretty-logger-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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