Proton pfff: Malicious code
Affects proton-pfffSource GCVE Database
Malicious package : remove proton-pfff and rotate any secrets on hosts that installed it.
Data as of 19 Jul 2026, 01:21 UTC
Malicious package
Published to crates.io · OSV MAL-2026-6959
What to do
Remove proton-pfff 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 |
|---|---|---|
| crates.ioproton-pfff | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The 'proton-pfff' package version 99.99.5 on crates.io is identified as malicious. It communicates with a domain linked to malicious activity and executes commands associated with harmful behavior. This package poses a high risk to users who include it in their projects.