big256-ts (npm) · Malicious Code
Affects big256-tsSource GCVE Database
Malicious package : remove big256-ts and rotate any secrets on hosts that installed it.
Data as of 12 Sep 2026, 20:01 UTC
Malicious package
Published to npm · OSV MAL-2026-6803
What to do
Remove big256-ts 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 |
|---|---|---|
| npmbig256-ts | Affected
| Fixed in– |
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Description
The big256-ts npm package versions 5.0.3 and 5.0.4 contain malicious code that compromises any computer on which it is installed or running. The compromise is severe enough that all secrets and keys stored on the affected system should be rotated immediately from a different, uncompromised machine. Removal of the package alone does not guarantee elimination of the malicious software or attacker control.