berg-fonbock (npm) · Malicious Code
Affects berg-fonbockSource GCVE Database
Malicious package : remove berg-fonbock and rotate any secrets on hosts that installed it.
Data as of 13 Nov 2026, 17:02 UTC
Malicious package
Published to npm · OSV MAL-2026-19237
What to do
Remove berg-fonbock 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 |
|---|---|---|
| npmberg-fonbock | Affected– | Fixed in– |
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Description
The npm package 'berg-fonbock' contains 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, trusted machine. Removing the package alone does not guarantee removal of all malicious components, as the attacker may have established persistent control.