Which versions of cache-compat-utils are malicious?

The following PyPI versions of cache-compat-utils are flagged malicious: 0.1.0. Treat any of these as compromised.

How do I remediate cache-compat-utils if I installed it?

Remove cache-compat-utils from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Is cache-compat-utils part of a known attack campaign?

Yes — cache-compat-utils is associated with the 2026-06-cache-compat-utils campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

Can O3 Security detect cache-compat-utils in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking cache-compat-utils and packages like it before any post-install script runs.

Malicious package

cache-compat-utilsPyPI

Malicious code in cache-compat-utils (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-5878

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall cache-compat-utils

What this malware does

The package contains obfuscated JS code with an infostealer harvesting all kinds of credentials, as well as a worm capable of spreading the infection further.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-06-cache-compat-utils

Reasons (based on the campaign):

obfuscation
malware
infostealer
exfiltration-credentials
exfiltration-ssh-keys
exfiltration-cloud-tokens

Malicious versions

1 flagged

0.1.0

Indicators of compromise (SHA-256)

3abe4019efea5cdd405c9129e127f5d8b05456422574e40b01c6ec3b10177975

Frequently asked questions

No. cache-compat-utils on PyPI has been identified as a malicious package (version 0.1.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-06-cache-compat-utils

References

bad-packages.kam193.eu

Credits

Kamil Mańkowski (kam193) · analyst

Scan your dependencies

O3 Security blocks malicious packages like this at install time and in CI.

Supply-chain protection