High severityOSV Advisory· Published Jan 13, 2026· Updated Jan 13, 2026
GuardDog Zip Bomb Vulnerability in safe_extract() Allows DoS
CVE-2026-22870
Description
GuardDog is a CLI tool to identify malicious PyPI packages. Prior to 2.7.1, GuardDog's safe_extract() function does not validate decompressed file sizes when extracting ZIP archives (wheels, eggs), allowing attackers to cause denial of service through zip bombs. A malicious package can consume gigabytes of disk space from a few megabytes of compressed data. This vulnerability is fixed in 2.7.1.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
guarddogPyPI | < 2.7.1 | 2.7.1 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-ffj4-jq7m-9g6vghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-22870ghsaADVISORY
- github.com/DataDog/guarddog/commit/c3fb07b4838945f42497e78b7a02bcfb1e63969bghsax_refsource_MISCWEB
- github.com/DataDog/guarddog/security/advisories/GHSA-ffj4-jq7m-9g6vghsax_refsource_CONFIRMWEB
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