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CriticalPyPI1 affected version

libasync

libasync has 1 version on PyPI flagged in 2 incidents we track. Other versions of this package are not implicated - only the exact versions listed below were named by the source advisories.

Affected versions

Check what you actually have installed with pip show libasync.

  • libasync@1.0.0

The 2 incidents that flagged it

Critical

GitHub Advisory malware sweep - 2026-08-23 batch (npm `@syncraft-labs/{core,react,vue}` EtherHiding blockchain-C2 dropper + 5-package `N-*-sight-web` bitbucket dropper + 4-package `*-testing-utils`/`*-testkit` jsonstorage.net pino-impersonator + 5-package `stillm4ddpocs-*` oast.fun DNS dep-confusion + `totp-utils` Minecraft JAR + Discord stealer + `create-coin` esbuild typosquat + `@usaa-grp` USAA dep-confusion + PyPI `scrambleeeer` 5th variant + PyPI `libasync` miner)

20 new GHSA CWE-506 advisories in the 24h ending 2026-08-23. Highlights: @syncraft-labs/{core,react,vue} uses Ethereum-blockchain dead-drop C2 (EtherHiding); five N-*-sight-web packages fetch mutable Bitbucket payloads; four pino-impersonators pull from jsonstorage.net; totp-utils drops a Minecraft mod JAR + steals Discord tokens.

Versions named here: 1.0.0

High

GitHub Advisory malware sweep - 2026-08-20 batch (PyPI `libasync` cryptominer typosquat continuation of `2026-07-pyqt6darktheme` register, PyPI `rc4-secure` OpenSSF PoC, npm `express-route-engine` jsonbin.io eval-loader, `base99-85x` base-x typosquat with plaintext key exfil to `168.231.81.80`, `mc-provider` Cosmos-registry impersonator with `supersig` transitive dropper, `x6842179305` XOR-Function dropper, `ai-texts-utils`+`ai-texts` bundled obfuscator payload, dep-confusion PoC families `dolyame-*`+`fb-*`+`devplatform-*`+`digital-interview-*`+`pfp-*`+`bigops-*`, express+eslint+create-react-app typosquat cluster, blockchain-toolkit typosquats `ethereum-validator`+`polygon-toolkit-validate`)

31 GHSA CWE-506 advisories in the 24h ending 2026-08-20 06:00 UTC. Headliners: PyPI libasync cryptominer with Windows-registry persistence (campaign 2026-08-libasync, continuation of 2026-07-pyqt6darktheme), npm express-route-engine eval-loader that fetches JSON payloads from jsonbin.io, and base99-85x base-x typosquat that streams caller-supplied private-key/seed material in cleartext to 168.231.81.80.

Versions named here: 1.0.0

What to do if you installed one of these

Treat the machine as compromised rather than simply upgrading. Packages in these incidents typically execute at install time, so the payload has already run with whatever credentials were in the environment.

  1. 1.Rotate every credential that machine or CI job could reach - registry tokens, cloud keys, SSH keys, CI secrets - from a different machine.
  2. 2.Pin to a version not listed above, then reinstall from a clean lockfile.
  3. 3.Clear caches and private mirrors. Artifactory, Nexus, Verdaccio, and devpi routinely keep serving a tarball after the public registry has pulled it.
  4. 4.Read the incident write-up above - recommended actions differ per incident, and some have specific indicators of compromise worth grepping your logs for.

Check your whole project

libasync is one of many packages in these incidents, and it is usually pulled in as a transitive dependency rather than one you installed directly. Paste your requirements.txt to check every dependency at once - it runs in your browser and nothing is uploaded.

Check my requirements.txt All flagged PyPI packages

Other packages in the same incident

If libasync is in your tree, these are worth checking too - they were published by the same campaign.

See the full incident

Version data comes from the public advisories cited on each incident page. We list only versions those advisories name - we don't infer additional ones. Think this is wrong or incomplete? Tell us.