Which versions of private-packages-sharingsession are malicious?

The following npm versions of private-packages-sharingsession are flagged malicious: 9.9.8. Treat any of these as compromised.

How do I remediate private-packages-sharingsession if I installed it?

Remove private-packages-sharingsession 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 private-packages-sharingsession — how do I know if it already compromised me?

If private-packages-sharingsession 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 private-packages-sharingsession part of a known attack campaign?

Yes — private-packages-sharingsession is associated with the RLMA-2026-05234, RLUA-2026-06396 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 private-packages-sharingsession across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for private-packages-sharingsession (version 9.9.8).

Malicious package

private-packages-sharingsessionnpm

Advisory published Jul 7, 2026Updated Sep 1, 2026

private-packages-sharingsession is a confirmed malicious npm package (MAL-2026-7351) that executes malicious code on install (malicious version 9.9.8). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in private-packages-sharingsession (npm)

MAL-2026-7351

Immediate action

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

npm uninstall private-packages-sharingsession

Malicious versions

1 flagged

9.9.8

Indicators of compromise (SHA-256)

352d744560b0cb1ce5ebc3ecf8aaff3976170e61d0f83cb2a2238578bbb8973f

8857b45ef5a306de9ef0dae12c97f2d0195f7022d5dc56db63838c570e0abf38

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for private-packages-sharingsession (version 9.9.8).
If you installed it — respond
Remove private-packages-sharingsession 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 private-packages-sharingsession 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. private-packages-sharingsession on npm has been identified as a malicious package (version 9.9.8 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-05234RLUA-2026-06396

References

github.com

Credits

ReversingLabs · finder

Detect & block this

O3 blocks private-packages-sharingsession-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

All malware advisories How O3 detects malware Vulnerability database