CVE-2026-18929

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Source

https://cve.org/CVERecord?id=CVE-2026-18929

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18929.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-18929

Published

2026-08-18T09:11:38Z

Modified

2026-08-30T03:30:52Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L CVSS Calculator

Summary

Resource Exhaustion in Carbone

Details

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.

Database specific

{
    "cna_assigner": "CERT-PL",
    "cwe_ids": [
        "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18929.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "4.26.3"
                },
                {
                    "fixed": "5.4.4"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/carboneio/carbone

Affected ranges

Type

GIT

Repo

https://github.com/carboneio/carbone

Events

Introduced

Fixed

eb9b4cff992cc1cb1a319d7fc0cbd09160dc214e

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.8.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

1.*

1.0.0

1.0.1

1.1.0

1.2.0

1.2.1

2.*

2.0.0

2.0.1

2.0.2

2.1.0

2.1.1

3.*

3.1.0

3.2.3

3.5.5

3.5.6

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-18929.json"