MalwarePublished 16 Jun 2026Updated 9 Jul 2026

cache-compat-utils (PyPI) · Malicious Code

Affects cache-compat-utilsSource GCVE Database

Malicious package : remove cache-compat-utils and rotate any secrets on hosts that installed it.

Data as of 11 Jul 2026, 09:43 UTC

Classification

Malicious package

Published to PyPI · OSV MAL-2026-5878

What to do

Remove cache-compat-utils 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
PyPIcache-compat-utils	Affected =0.1.0	Fixed in–

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Description

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (70fc75889476bd737b302c856fb1d2da1b263a93786bc27fed3978c3eb0584cd) The package was found to contain malicious code or consuming dependency that contains malicious code ## Source: kam193 (3abe4019efea5cdd405c9129e127f5d8b05456422574e40b01c6ec3b10177975) 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

Impact

The malicious code in the affected package can lead to theft of sensitive credentials such as SSH keys and cloud tokens, potentially compromising user accounts and cloud environments. The worm capability may allow the malware to spread to other systems, increasing the scope of compromise. This poses a significant security risk to users who have installed version 0.1.0 of the package.

Defensive guidance

Users should immediately remove version 0.1.0 of 'cache-compat-utils' from their environments and avoid installing this package. Monitor for updates from the package maintainers or PyPI for any official advisories or fixes. Since this is a malicious package, replacing it with a trusted alternative or verifying package integrity before installation is recommended.

Summary

The 'cache-compat-utils' package on PyPI, specifically version 0.1.0, was found to contain obfuscated JavaScript code functioning as an infostealer. This malicious code exfiltrates sensitive credentials including SSH keys and cloud tokens and includes worm-like capabilities to propagate the infection. The package is flagged under campaign MAL-2026-5878 with confirmed malicious behavior, including obfuscation, malware presence, credential theft, and exfiltration. There is no CVSS score or vendor advisory available, and no known exploits in the wild have been reported.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Jul 2026, 09:36 UTC

Technical details

References

Community reviews