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AI / ML CVE-2026-22870

HIGH
Improper Handling of Highly Compressed Data (Data Amplification) (CWE-409)
2026-01-13 security-advisories@github.com GHSA-ffj4-jq7m-9g6v
Denial Of Service AI / ML Guarddog
7.5
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 21, 2026 - 18:47 vuln.today
Public exploit code
Patch released
Jan 21, 2026 - 18:47 nvd
Patch available
CVE Published
Jan 13, 2026 - 21:15 nvd
HIGH 7.5

DescriptionGitHub Advisory

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.

AnalysisAI

GuardDog versions prior to 2.7.1 fail to validate decompressed file sizes when extracting Python package archives, enabling denial of service attacks through zip bomb payloads that can consume gigabytes of disk space from minimal compressed data. Public exploit code exists for this vulnerability, affecting users who rely on GuardDog to scan PyPI packages for malicious content. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Upload malicious PyPI package with zip bomb
Exploit
GuardDog downloads and extracts wheel
Execution
Decompressed content exhausts disk space
Impact
Service denial
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Vulnerability AssessmentAI

Exploitation GuardDog versions prior to 2.7.1 analyzing untrusted PyPI packages without decompressed file size validation. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.5 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker could exploit this vulnerability to compromise the affected system.
Remediation A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 7 days: Identify all affected systems and apply vendor patches promptly. …

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CVE-2026-22870 vulnerability details – vuln.today
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