melstagen (PyPI) · Malicious Code
Affects melstagenSource GCVE Database
Malicious package : remove melstagen and rotate any secrets on hosts that installed it.
Data as of 12 Nov 2026, 23:35 UTC
Malicious package
Published to PyPI · OSV MAL-2026-19187
What to do
Remove melstagen 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 |
|---|---|---|
| PyPImelstagen | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: kam193 (ac28e45b20df71fefbc8a6294c7e7a202f42b356e38dc49b0e28f335fb9a2737) This campaign consists of similar loader packages, which provide executing code from a given URL. While they do not contain the malicious payload and the usage remains unknown, they are clearly a coordinated campaign to place multiple deceptive ways to load malicious code. --- Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-10-voice-synthesis-profiles Reasons (based on the campaign): - other - Downloads and executes a remote malicious script.