Apache 2.2

Status EOLSupport 2005-12 – 2017-07Latest 2.2.34Vulnerabilities 92← All Apache versions
Critical 10.0
2010-03-05≤ 2.2.14

Critical 9.8 Unfixed
2018-03-26≤ 2.2.34

httpd: Weak Digest auth nonce generation in mod_auth_digest

Critical 9.8
2017-06-20< 2.2.34

httpd: mod_mime buffer overread

Critical 9.8
2017-06-20< 2.2.33

httpd: mod_ssl NULL pointer dereference

Critical 9.8
2017-06-20< 2.2.33

httpd: ap_get_basic_auth_pw() authentication bypass

Critical 9.1
2017-07-13< 2.2.34

httpd: Uninitialized memory reflection in mod_auth_digest

High 8.1
2016-07-19< 2.2.32

HTTPD: sets environmental variable based on user supplied Proxy request header

High 7.8
2008-01-12< 2.2.7

High 7.8
2011-08-29< 2.2.20

httpd: multiple ranges DoS

High 7.6
2006-07-28< 2.2.3

High 7.5 Unfixed
0000-00-00≤ 2.2.34

Mod_auth_openidc: dos via empty post in mod_auth_openidc with oidcpreservepost enabled

High 7.5
2009-01-22≤ 2.2.6

mod_auth_mysql: character encoding SQL injection flaw

High 7.5 Unfixed
2018-03-26≤ 2.2.34

httpd: Out of bounds write in mod_authnz_ldap when using too small Accept-Language values

High 7.5
2009-06-06< 2.2.12

apr-util billion laughs attack

High 7.5
2009-10-13< 2.2.14

(apr): Improper pollset feature error handling on Solaris - DoS (hang)

High 7.5
2017-07-27< 2.2.32

httpd: Apache HTTP Request Parsing Whitespace Defects

High 7.5
2017-06-20= 2.2.32

httpd: ap_find_token() buffer overread

High 7.5
2017-09-18< 2.2.35

httpd: Use-after-free by limiting unregistered HTTP method (Optionsbleed)

High 7.4 Unfixed
2025-07-10≤ 2.2.34

Apache HTTP Server: mod_ssl TLS upgrade attack

High 7.1
2009-07-10< 2.2.12

httpd: possible temporary DoS (CPU consumption) in mod_deflate

High 7.1
2009-07-05< 2.2.12

httpd: mod_proxy reverse proxy DoS (infinite loop)

Medium 6.9
2012-04-18< 2.2.23

httpd: insecure handling of LD_LIBRARY_PATH in envvars

Medium 6.8
2006-10-16≤ 2.2.3

Medium 6.8
2014-07-20< 2.2.29

httpd: mod_status heap-based buffer overflow

Medium 6.5
2018-07-26= 2.2.15

httpd: # character matches all IPs

Medium 6.4
2009-06-06< 2.2.12

apr-util single NULL byte buffer overflow

Medium 6.2
2007-04-13= 2.2.3

Medium 6.1
2007-09-14< 2.2.6

mod_autoindex XSS

Medium 6.1
2018-08-14< 2.2.32

mod_userdir CRLF injection

Medium 5.8
2009-11-09≤ 2.2.14

TLS: MITM attacks via session renegotiation

Medium 5.4
2006-01-06< 2.2.2

security flaw

Medium 5.1
2013-06-10< 2.2.25

httpd: mod_rewrite allows terminal escape sequences to be written to the log file

Medium 5.0
2011-12-27≤ 2.2.14

httpd: Apache Slowloris denial of service

Medium 5.0
2014-04-15≤ 2.2.27

httpd: bypass of mod_headers rules via chunked requests

Medium 5.0
2007-08-23< 2.2.6

httpd: out of bounds read

Medium 5.0
2007-06-27< 2.2.6

httpd mod_cache segfault

Medium 5.0
2007-06-04< 2.2.6

Medium 5.0
2008-06-13< 2.2.9

httpd: mod_proxy_http DoS via excessive interim responses from the origin server

Medium 5.0
2010-08-05= 2.2.9

httpd: Reverse proxy sends wrong responses after time-outs

Medium 5.0
2009-04-23= 2.2.11

httpd mod_proxy_ajp information disclosure

Medium 5.0
2009-09-08< 2.2.14

httpd: mod_proxy_ftp FTP command injection via Authorization HTTP header

Medium 5.0
2010-03-05< 2.2.15

httpd: mod_proxy_ajp remote temporary DoS

Medium 5.0
2010-06-18≥ 2.2.9 and ≤ 2.2.15

(mod_proxy): Sensitive response disclosure due improper handling of timeouts

Medium 5.0
2010-07-28< 2.2.16

mod_dav: DoS (httpd child process crash) by parsing URI structure with missing path segments

Medium 5.0
2010-10-04< 2.2.17

apr-util: high memory consumption in apr_brigade_split_line()

Medium 5.0
2009-11-03≥ 2.2.0 and < 2.2.17

expat: buffer over-read and crash on XML with malformed UTF-8 sequences

Medium 5.0
2009-12-04< 2.2.17

expat: buffer over-read and crash in big2_toUtf8() on XML with malformed UTF-8 sequences

Medium 5.0
2012-11-30≥ 2.2.12 and ≤ 2.2.21

httpd: mod_proxy_ajp worker moved to error state when timeout exceeded

Medium 5.0
2011-10-05< 2.2.22

httpd: reverse web proxy vulnerability

Medium 5.0
2014-03-18< 2.2.27

httpd: mod_log_config does not properly handle logging certain cookies resulting in DoS

Medium 5.0
2014-03-18< 2.2.27

httpd: mod_dav denial of service via crafted DAV WRITE request

Medium 5.0
2014-07-20< 2.2.29

httpd: mod_cgid denial of service

Medium 4.9
2007-06-20= 2.2.4

Medium 4.9
2009-05-28< 2.2.12

httpd: AllowOverride Options=IncludesNoExec allows Options Includes

Medium 4.7
2007-06-20< 2.2.6

httpd scoreboard lack of PID protection

Medium 4.6
2012-01-18< 2.2.22

httpd: possible crash on shutdown due to flaw in scoreboard handling

Medium 4.4
2007-04-13= 2.2.3

Medium 4.4
2011-11-08≤ 2.2.21

httpd: ap_pregsub Integer overflow to buffer overflow

Medium 4.3
2006-08-14≥ 2.2.2 and ≤ 2.2.3

Medium 4.3
2007-12-21= 2.2.6

When document is on smbfs, a trailing backslash at the end of file name bypasses content type match

Medium 4.3
2008-01-25< 2.2.23

httpd: mod_negotiation XSS via untrusted file names in directories with MultiViews enabled

Medium 4.3
2007-12-03≤ 2.2.4

httpd: Garbage before http method name is not escaped in a reply in case of errorneous request

Medium 4.3
2008-05-13≤ 2.2.4

httpd: XSS via UTF-7 encoded urls on the 403 Forbidden error page

Medium 4.3
2011-05-24= 2.2.18

apr: DoS flaw in apr_fnmatch() due to fix for CVE-2011-0419

Medium 4.3
2011-11-30< 2.2.18

httpd: http 0.9 request bypass of the reverse proxy vulnerability CVE-2011-3368 fix

Medium 4.3
2005-12-13< 2.2.0

httpd cross-site scripting flaw in mod_imap

Medium 4.3
2007-06-27< 2.2.6

httpd mod_status XSS

Medium 4.3
2008-01-12< 2.2.8

mod_proxy_ftp XSS

Medium 4.3
2008-01-08< 2.2.7

apache mod_status cross-site scripting

Medium 4.3
2007-12-13< 2.2.8

httpd: mod_imagemap XSS

Medium 4.3
2008-01-12< 2.2.9

mod_proxy_balancer: mod_proxy_balancer CSRF

Medium 4.3
2008-08-06< 2.2.10

httpd: mod_proxy_ftp globbing XSS

Medium 4.3
2009-06-06< 2.2.12

apr-util heap buffer underwrite

Medium 4.3
2010-03-05< 2.2.15

httpd: request header information leak

Medium 4.3
2011-05-16< 2.2.19

apr: unconstrained recursion in apr_fnmatch

Medium 4.3
2011-09-19≥ 2.2.12 and ≤ 2.2.20

httpd: mod_proxy_ajp remote temporary DoS

Medium 4.3
2012-01-28< 2.2.22

httpd: cookie exposure due to error responses

Medium 4.3
2011-11-30≤ 2.2.21

httpd: uri scheme bypass of the reverse proxy vulnerability CVE-2011-3368 fix

Medium 4.3
2013-02-26< 2.2.24

httpd: XSS flaw in mod_proxy_balancer manager interface

Medium 4.3
2013-02-26< 2.2.24

httpd: multiple XSS flaws due to unescaped hostnames

Medium 4.3
2013-07-10< 2.2.25

httpd: mod_dav DoS (httpd child process crash) via a URI MERGE request with source URI not handled by mod_dav

Medium 4.3
2014-07-20< 2.2.29

httpd: mod_deflate denial of service

Medium 4.0
2008-01-08< 2.2.8

httpd mod_proxy_balancer crash

Low 3.7
2007-04-13= 2.2.3

Low 3.7
2015-07-20< 2.2.31

httpd: HTTP request smuggling attack against chunked request parser

Low 3.5
2008-01-08< 2.2.8

httpd mod_proxy_balancer cross-site scripting

Low 2.6
2008-01-25< 2.2.12

httpd: mod_negotiation CRLF injection via untrusted file names in directories with MultiViews enabled

Low 2.6
2009-09-08< 2.2.14

httpd: NULL pointer defer in mod_proxy_ftp caused by crafted EPSV and PASV reply

Low 2.6
2012-01-28≥ 2.2.17 and ≤ 2.2.21

httpd: NULL pointer dereference crash in mod_log_config

Low 2.6
2012-08-22< 2.2.23

httpd: mod_negotiation XSS via untrusted file names in directories with MultiViews enabled

Low 1.2
2011-11-08≤ 2.2.21

httpd: SetEnvIf resource exhaustion

N/A
2009-08-06< 2.2.13