CVE-2026-114103: Uncontrolled Resource Consumption in cthackers adm-zip
Description
CVE-2026-114103 is a medium severity vulnerability in adm-zip version 0.6.0 that allows attackers to bypass decompression bomb protections. The flaw exists in the asynchronous getDataAsync() method where attackers can craft ZIP entries with small declared sizes but highly compressed payloads, leading to uncontrolled memory exhaustion.
CVSS v4.0
Score 6.9medium
Affected software
cthackers
adm-zip
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The adm-zip library version 0.6.0 contains a decompression bomb protection bypass vulnerability in the asynchronous getDataAsync() path within methods/inflater.js. Attackers can exploit this by creating ZIP entries that declare small sizes but contain highly compressed DEFLATE payloads, evading the maxOutputLength guard and causing excessive memory consumption during asynchronous decompression.
Potential Impact
Successful exploitation can lead to uncontrolled resource consumption (memory exhaustion) in applications using adm-zip asynchronously to read ZIP entries. This may degrade application performance or cause crashes due to memory exhaustion. There is no indication of privilege escalation or code execution.
Mitigation Recommendations
No patch or official fix is currently documented. Users should monitor vendor advisories for updates. Until a fix is available, avoid processing untrusted ZIP files asynchronously with adm-zip 0.6.0 or implement additional application-level resource limits to mitigate memory exhaustion risks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-20T21:47:43.313Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad80c0a2cdf04f6568caa5a
Added to database: 10/21/2026, 00:49:14 UTC
Last enriched: 10/21/2026, 01:04:09 UTC
Last updated: 10/21/2026, 01:28:18 UTC
Views: 3
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