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| Vulnerability ID | VCID-pdj3-4txb-vych |
| Aliases |
CVE-2009-1891
|
| Summary | A denial of service flaw was found in the mod_deflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 2.1 |
| Risk | 1.1 |
| Affected and Fixed Packages | Package Details |
| There are no known CWE. |
| Reference id | Reference type | URL |
|---|---|---|
| https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2009-1891.json | ||
| https://api.first.org/data/v1/epss?cve=CVE-2009-1891 | ||
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1891 | ||
| 509125 | https://bugzilla.redhat.com/show_bug.cgi?id=509125 | |
| 534712 | https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534712 | |
| CVE-2009-1891 | https://httpd.apache.org/security/json/CVE-2009-1891.json | |
| GLSA-200907-04 | https://security.gentoo.org/glsa/200907-04 | |
| RHSA-2009:1148 | https://access.redhat.com/errata/RHSA-2009:1148 | |
| RHSA-2009:1155 | https://access.redhat.com/errata/RHSA-2009:1155 | |
| RHSA-2009:1160 | https://access.redhat.com/errata/RHSA-2009:1160 | |
| RHSA-2009:1205 | https://access.redhat.com/errata/RHSA-2009:1205 | |
| USN-802-1 | https://usn.ubuntu.com/802-1/ |
| Percentile | 0.9526 |
| EPSS Score | 0.18846 |
| Published At | April 1, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-04-01T12:36:15.644811+00:00 | Apache HTTPD Importer | Import | https://httpd.apache.org/security/json/CVE-2009-1891.json | 38.0.0 |