PT-2026-2804 · Guarddog · Guarddog

Dwbruijn · Published 2026-01-13 · Updated 2026-01-21 · CVE-2026-22870

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions GuardDog versions prior to 2.7.1

Description GuardDog, a CLI tool for identifying malicious PyPI packages, contains a flaw in its safe extract() function. This function does not validate the size of decompressed files when handling ZIP archives, such as wheels and eggs. This can lead to a denial of service as attackers can utilize zip bombs – small compressed files that expand to consume excessive disk space, potentially gigabytes from a few megabytes of compressed data.

Recommendations Update to GuardDog version 2.7.1 or later.

Exploit

Fix

DoS

Weakness Enumeration

CWE-409

Related Identifiers

CVE-2026-22870

GHSA-FFJ4-JQ7M-9G6V

Affected Products

Guarddog

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22870.json · Exploit
• 🔥 https://github.com/DataDog/guarddog/security/advisories/GHSA-ffj4-jq7m-9g6v · Exploit
• https://github.com/DataDog/guarddog/commit/c3fb07b4838945f42497e78b7a02bcfb1e63969b · Patch
• https://osv.dev/vulnerability/GHSA-ffj4-jq7m-9g6v · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-22870 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-22870 · Security Note
• https://github.com/DataDog/guarddog · Note
• https://twitter.com/_cvereports/status/2011242720753226051 · Twitter Post
• https://twitter.com/CVEnew/status/2011181442752233977 · Twitter Post
• https://t.me/cveNotify/149429 · Telegram Post