CVE-2009-1891

HighCVSS 7.1/10Last modified Jun 16, 2026

Description

The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).

Metrics

CVSS 2.0 7.1/10AV:N/AC:M/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published
Jul 10, 2009
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2009-1891: High severity, CVSS 7.1 | Vulnix