CVE WatchAug 18, 2026

CVE-2026-18929

Carbone is vulnerable to Denial of Service due to lack of protection against zip bombs when processing .docx files. The library uses yazl fo

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

0-100

Published: Aug 18, 2026 · Last modified: Aug 18, 2026 · CWE-409

EPSS · 30d

Not enough EPSS history yet.

Technical description

Carbone is vulnerable to Denial of Service due to lack of protection against zip bombs when processing .docx files. The library uses yazl for zip decompression without validating entry sizes, allowing an attacker to supply a malicious .docx file containing a zip bomb that decompresses to a significantly larger size, causing excessive memory consumption and crashing the application server. The issue was fixed in versions: 3.8.2, 4.26.3 and 5.4.4. The fix is available across all distribution types.

Official references

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