MalwarePublished 29 Oct 2025

react-web-api (npm) · Malicious Code

Affects react-web-apiSource GCVE Database

Malicious package : remove react-web-api and rotate any secrets on hosts that installed it.

Data as of 29 Oct 2026, 23:06 UTC

Classification

Malicious package

Published to npm · OSV MAL-2025-49038

What to do

Remove react-web-api from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmreact-web-api	Affected =9.9.0	Fixed in–

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Description

The react-web-api npm package version 9.9.0 contains malicious code that installs an info stealer during installation. This malware targets sensitive tokens related to npm, git, and CI/CD environments. Systems with this package installed should be considered fully compromised, and all secrets and keys stored on those systems must be rotated immediately from a different, trusted machine.

Impact

Any system with react-web-api version 9.9.0 installed is considered fully compromised. Attackers may have stolen sensitive tokens and credentials related to npm, git, and CI/CD processes, which can lead to further unauthorized access and potential lateral movement within development and deployment environments. Immediate rotation of all secrets and keys from a separate secure system is necessary to mitigate ongoing risk.

Defensive guidance

Remove the react-web-api package version 9.9.0 immediately. Rotate all secrets, tokens, and keys that were stored or used on the compromised system from a different, trusted computer. Because the system may be fully compromised, consider rebuilding or thoroughly cleaning the affected environment to ensure complete removal of malicious software.

Summary

The react-web-api package version 9.9.0 is a malicious npm package that installs a dependency from a custom domain which executes an information-stealing payload during installation. The malware specifically targets tokens used in npm, git, and CI/CD pipelines, potentially allowing attackers to gain unauthorized access to these systems. Due to the nature of the compromise, removal of the package alone does not guarantee full remediation as the attacker may have established persistent control over the affected system.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Oct 2026, 23:06 UTC

Technical details

References

Community reviews