cobrowsing-decorators (npm) · Malicious Code
Affects cobrowsing-decoratorsSource GCVE Database
Malicious package : remove cobrowsing-decorators and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 16:18 UTC
Malicious package
Published to npm · OSV MAL-2026-12653
What to do
Remove cobrowsing-decorators 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 |
|---|---|---|
| npmcobrowsing-decorators | Affected
| Fixed in– |
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Description
The npm package 'cobrowsing-decorators' version 35.2.9 contains malicious code that, upon import, downloads and executes an opaque binary from obfuscated Cloudflare Workers endpoints and fallback domains. The binary is saved with disguised filenames and executed without signature or hash verification. The package's telemetry component also contains redundant code to drop and execute the payload. This behavior is unrelated to the package's declared purpose and represents a supply chain compromise.