pp-react-ui5npm
Advisory published Updated
pp-react-ui5 is a confirmed malicious npm package (MAL-2026-11059) that steals credentials and exfiltrates sensitive data (malicious versions 21.0.0, 28.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in pp-react-ui5 (npm)
What this malware does
Analysis of [email protected] (4 files) surfaced no behaviors matching supply-chain attack classes: no lifecycle scripts fetching or executing remote content, no reads of installer credential paths (~/.npmrc, ~/.aws, ~/.ssh, browser profiles), no environment-variable scraping, no hardcoded exfiltration endpoints, no obfuscated payloads, and no backdoor or silent-relay mechanisms observed. The package appears benign under the criteria evaluated here.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
The OpenSSF Package Analysis project identified 'pp-react-ui5' @ 28.0.0 (npm) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for pp-react-ui5 (2 malicious versions).
If you installed it — respond
pp-react-ui5 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If pp-react-ui5 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
Campaign
References
Credits
- Amazon Inspector · finder
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks pp-react-ui5-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.