← Vulnerability feed

Vulnerability record · CVE-2009-1191 · published 23 April 2009

CVE-2009-1191: Apache http server vulnerability

Apache · Http Server

mod_proxy_ajp.c in the mod_proxy_ajp module in the Apache HTTP Server 2.2.11 allows remote attackers to obtain sensitive response data, intended for a client that sent an earlier POST request with no request body, via an HTTP request.

5.0 CVSS 2.0 Medium EPSS 12% · top 3.9%
5.0CVSS 2.0 base score
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
66References
16 Jun 2026Last modified by NVD

Description

mod_proxy_ajp.c in the mod_proxy_ajp module in the Apache HTTP Server 2.2.11 allows remote attackers to obtain sensitive response data, intended for a client that sent an earlier POST request with no request body, via an HTTP request.

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

Affected products

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

References

LinkTags
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html Broken LinkMailing List
http://osvdb.org/53921 Broken Link
http://secunia.com/advisories/34827 Not Applicable
http://secunia.com/advisories/35395 Not Applicable
http://secunia.com/advisories/35721 Not Applicable
http://security.gentoo.org/glsa/glsa-200907-04.xml Third Party Advisory
http://support.apple.com/kb/HT3937 Broken Link
http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?r1=766938&r2=767089 PatchVendor Advisory
http://www.apache.org/dist/httpd/patches/apply_to_2.2.11/PR46949.diff PatchVendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:102 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150 Broken Link
http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html Third Party Advisory
http://www.securityfocus.com/bid/34663 PatchThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1022264 Broken LinkThird Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/usn-787-1 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1147 Permissions Required
http://www.vupen.com/english/advisories/2009/3184 Permissions Required
https://exchange.xforce.ibmcloud.com/vulnerabilities/50059 Third Party AdvisoryVDB Entry
https://issues.apache.org/bugzilla/show_bug.cgi?id=46949 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r7dd6be4dc38148704f2edafb44a8712abaa3a2be120d6c3314d55919%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r84d043c2115176958562133d96d851495d712aa49da155d81f6733be%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rc4c53a0d57b2771ecd4b965010580db355e38137c8711311ee1073a8%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8261 Third Party Advisory
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html Broken LinkMailing List
http://osvdb.org/53921 Broken Link
http://secunia.com/advisories/34827 Not Applicable
http://secunia.com/advisories/35395 Not Applicable
http://secunia.com/advisories/35721 Not Applicable
http://security.gentoo.org/glsa/glsa-200907-04.xml Third Party Advisory
http://support.apple.com/kb/HT3937 Broken Link

Track CVE-2009-1191 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.8CVE-2021-42013Apache HTTP Server path traversal and RCE via incomplete fixThe fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient, leaving a path traversal flaw that lets attackers map URLs to files outside…KEVEPSS 100%analysed9.8CVE-2021-41773Apache HTTP Server 2.4.49 path traversal and RCEA path normalization flaw introduced in Apache HTTP Server 2.4.49 lets attackers map URLs to files outside directories configured by Alias-like direc…KEVEPSS 100%analysed9.8CVE-2020-11651SaltStack Salt master authentication bypass in ClearFuncsSaltStack Salt before 2019.2.4 and 3000 before 3000.2 fails to properly validate method calls in the salt-master ClearFuncs class, allowing remote un…KEVEPSS 97%analysed9.8CVE-2020-7247OpenSMTPD MAIL FROM command injection allows remote root code executionOpenSMTPD 6.6, as shipped in OpenBSD 6.6 and other products, mishandles input validation in smtp_mailaddr in smtp_session.c, returning an incorrect v…KEVEPSS 99%analysed9.8CVE-2019-11043PHP-FPM buffer overflow enables remote code executionPHP-FPM in certain configurations writes past allocated buffers into FCGI protocol data space, an out-of-bounds write (CWE-787, CWE-120). It affects …KEVEPSS 100%analysed9.8CVE-2019-16928Exim heap buffer overflow in string_vformat via long EHLO commandExim 4.92 through 4.92.2 contains a heap-based buffer overflow in string_vformat in string.c triggered by a long EHLO command, allowing remote code e…KEVEPSS 42%analysed9.8CVE-2019-10149Exim MTA improper recipient validation leads to remote command executionExim versions 4.87 through 4.91 fail to properly validate recipient addresses in the deliver_message() function in /src/deliver.c, allowing command i…KEVEPSS 100%analysed9.8CVE-2018-6789Exim SMTP base64d buffer overflow allows remote code executionExim before 4.90.1 contains a buffer overflow in the base64d function of its SMTP listener. A handcrafted message can trigger the overflow, and the f…KEVEPSS 82%analysed

Source: NIST National Vulnerability Database (record CVE-2009-1191), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.