High severity · published Jan 13, 2026
CVE-2026-22870
GuardDog Zip Bomb Vulnerability in safe_extract() Allows DoS
7.5
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GU
guarddog · DataDog
< 2.7.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-22870
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-22870
Patch
https://github.com/DataDog/guarddog/commit/c3fb07b4838945f42497e78b7a02bcfb1e63969b
Exploit
https://github.com/DataDog/guarddog/security/advisories/GHSA-ffj4-jq7m-9g6v
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