Vulnerability · Published Jan 13, 2026 · Assigned by GitHub_M
CVE-2026-22870GuardDog Zip Bomb Vulnerability in safe_extract() Allows DoS
High 7.1
In plain English
A high-severity security flaw in guarddog from DataDog. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | guarddog | 2.7.1 | GHSA-ffj4-jq7m-9g6v |
| PyPI | guarddog | 2.7.1 | PYSEC-2026-1429 |
Affected products (as reported)
Weakness: CWE-409 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N