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Vulnerability record · CVE-1999-1199 · published 7 August 1998

CVE-1999-1199: Apache http server vulnerability

Apache · Http Server

Apache WWW server 1.3.1 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via a large number of MIME headers with the same name, aka the "sioux" vulnerability.

10.0 CVSS 2.0 High EPSS 7.6% · top 5.7%
10.0CVSS 2.0 base score
7.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References
16 Jun 2026Last modified by NVD

Description

Apache WWW server 1.3.1 and earlier allows remote attackers to cause a denial of service (resource exhaustion) via a large number of MIME headers with the same name, aka the "sioux" vulnerability.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=90252779826784&w=2
http://marc.info/?l=bugtraq&m=90276683825862&w=2
http://marc.info/?l=bugtraq&m=90280517007869&w=2
http://marc.info/?l=bugtraq&m=90286768232093&w=2
http://www.redhat.com/support/errata/rh51-errata-general.html#apache
https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org
http://marc.info/?l=bugtraq&m=90252779826784&w=2
http://marc.info/?l=bugtraq&m=90276683825862&w=2
http://marc.info/?l=bugtraq&m=90280517007869&w=2
http://marc.info/?l=bugtraq&m=90286768232093&w=2
http://www.redhat.com/support/errata/rh51-errata-general.html#apache
https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-1999-1199), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.