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Vulnerability record · CVE-2014-8109 · published 29 December 2014

CVE-2014-8109: Apache http server incorrect authorization vulnerability

Apache · Http Server

mod_lua.c in the mod_lua module in the Apache HTTP Server 2.3.x and 2.4.x through 2.4.10 does not support an httpd configuration in which the same Lua authorization provider is used with different arguments within different contexts, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging multiple Require directives, as demonstrated by a configuration that specifies authorization for one group to access a certain directory, and authorization for a second group to access a second directory.

4.3 CVSS 2.0 Medium EPSS 22% · top 2.4% CWE-863 · Incorrect authorization
4.3CVSS 2.0 base score
22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
50References
17 Jun 2026Last modified by NVD

Description

mod_lua.c in the mod_lua module in the Apache HTTP Server 2.3.x and 2.4.x through 2.4.10 does not support an httpd configuration in which the same Lua authorization provider is used with different arguments within different contexts, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging multiple Require directives, as demonstrated by a configuration that specifies authorization for one group to access a certain directory, and authorization for a second group to access a second directory.

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

Affected products

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

References

LinkTags
http://advisories.mageia.org/MGASA-2015-0011.html Third Party Advisory
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html Broken LinkMailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html Broken LinkMailing List
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159352.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/11/28/5 Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html Third Party Advisory
http://www.securityfocus.com/bid/73040 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2523-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1174077 Issue TrackingPatchThird Party Advisory
https://github.com/apache/httpd/commit/3f1693d558d0758f829c8b53993f1749ddf6ffcb PatchThird Party Advisory
https://issues.apache.org/bugzilla/show_bug.cgi?id=57204 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/ra7f6aeb28661fbf826969526585f16856abc4615877875f9d3b35ef4%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org
https://support.apple.com/HT205219 Third Party Advisory
https://support.apple.com/kb/HT205031 Third Party Advisory
http://advisories.mageia.org/MGASA-2015-0011.html Third Party Advisory
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html Broken LinkMailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html Broken LinkMailing List
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159352.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2014/11/28/5 Mailing ListThird Party Advisory
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html Third Party Advisory
http://www.securityfocus.com/bid/73040 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2523-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1174077 Issue TrackingPatchThird Party Advisory
https://github.com/apache/httpd/commit/3f1693d558d0758f829c8b53993f1749ddf6ffcb PatchThird Party Advisory
https://issues.apache.org/bugzilla/show_bug.cgi?id=57204 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org

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Source: NIST National Vulnerability Database (record CVE-2014-8109), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.