CVE-2005-2088

Exp

The Apache HTTP server before 1.3.34, and 2.0.x before 2.0.55, when acting as an HTTP proxy, allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes Apache to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."

Published: 2005-07-05 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-2088 is rated High Exploit Risk (61.3/100): CVSS Medium severity, with high exploitation likelihood (EPSS 39.95%, 97th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2005-2088

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-2088

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-25 54.29% 39.95% -14.34%
2 2026-03-04 46.69% 54.29% +7.60%
3 2026-03-01 — 46.69% —

Full EPSS history (41 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-2088

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2005-2088

OS Trackers for CVE-2005-2088

vendor priority summary link
debian medium CVE-2005-2088 medium priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2005-2088
redhat medium — https://access.redhat.com/security/cve/CVE-2005-2088
ubuntu medium CVE-2005-2088 medium priority: Ubuntu including 2 source packages (apache, apache2), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): released 6, needs-triage 2. https://ubuntu.com/security/CVE-2005-2088

Vendor comments (NVD) for CVE-2005-2088

  • Apache (2008-07-02T00:00:00)

    Fixed in Apache HTTP Server 2.0.55: http://httpd.apache.org/security/vulnerabilities_20.html

Affected software / configurations for CVE-2005-2088

Vendor Product Version Raw CPE
apache http_server >= 2.0.35, < 2.0.55 cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
debian debian_linux 3.0 cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:*
debian debian_linux 3.1 cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*

References for CVE-2005-2088

URL Tags
http://docs.info.apple.com/article.html?artnum=302847 Broken Link
http://lists.trustix.org/pipermail/tsl-announce/2005-October/000354.html Broken Link
http://marc.info/?l=apache-httpd-announce&m=112931556417329&w=3 Mailing List Third Party Advisory
http://seclists.org/lists/bugtraq/2005/Jun/0025.html Issue Tracking Mailing List Third Party Advisory
http://secunia.com/advisories/14530 Not Applicable
http://secunia.com/advisories/17319 Not Applicable
http://secunia.com/advisories/17487 Not Applicable
http://secunia.com/advisories/17813 Not Applicable
http://secunia.com/advisories/19072 Not Applicable
http://secunia.com/advisories/19073 Not Applicable
http://secunia.com/advisories/19185 Not Applicable
http://secunia.com/advisories/19317 Not Applicable
http://secunia.com/advisories/23074 Not Applicable
http://securityreason.com/securityalert/604 Exploit Third Party Advisory
http://securitytracker.com/id?1014323 Broken Link Third Party Advisory VDB Entry
http://slackware.com/security/viewer.php?l=slackware-security&y=2005&m=slackware-security.600000 Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102197-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102198-1 Broken Link
http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm Third Party Advisory
http://www-1.ibm.com/support/search.wss?rs=0&q=PK13959&apar=only Broken Link Third Party Advisory
http://www-1.ibm.com/support/search.wss?rs=0&q=PK16139&apar=only Broken Link Third Party Advisory
http://www.apache.org/dist/httpd/CHANGES_1.3 Broken Link Vendor Advisory
http://www.apache.org/dist/httpd/CHANGES_2.0 Broken Link Vendor Advisory
http://www.debian.org/security/2005/dsa-803 Mailing List Third Party Advisory
http://www.debian.org/security/2005/dsa-805 Mailing List Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2005:130 Third Party Advisory
http://www.novell.com/linux/security/advisories/2005_18_sr.html Broken Link
http://www.novell.com/linux/security/advisories/2005_46_apache.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-582.html Broken Link Third Party Advisory
http://www.securiteam.com/securityreviews/5GP0220G0U.html Broken Link Exploit
http://www.securityfocus.com/archive/1/428138/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/14106 Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/15647 Broken Link Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/usn-160-2 Broken Link
http://www.vupen.com/english/advisories/2005/2140 Broken Link Permissions Required
http://www.vupen.com/english/advisories/2005/2659 Broken Link Permissions Required
http://www.vupen.com/english/advisories/2006/0789 Broken Link Permissions Required
http://www.vupen.com/english/advisories/2006/1018 Broken Link Permissions Required
http://www.vupen.com/english/advisories/2006/4680 Broken Link Permissions Required
http://www.watchfire.com/resources/HTTP-Request-Smuggling.pdf Broken Link
http://www1.itrc.hp.com/service/cki/docDisplay.do?docId=c00612828 Broken Link
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E Mailing List Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11452 Broken Link Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1237 Broken Link Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1526 Broken Link Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1629 Broken Link Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A840 Broken Link Third Party Advisory
https://secure-support.novell.com/KanisaPlatform/Publishing/741/3222109_f.SAL_Public.html Broken Link
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