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Fencer Vulns
medium 4.3

CVE-2006-3918 json

http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before…

published 2006-07-28 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-3912

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
95.1%
EPSS 95.1% chance of exploitation in 30 days, percentile 99.8%
public exploits
1
Exploit-DB

Summary

http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated using a Flash SWF file.

Patch / fix

  • apache http_server 1.3.35
  • apache2 Debian 14, Debian 13, Debian 12 2.0.55-4.1

debian advisories DEBIAN-CVE-2006-3918

  • ant certificate system 7.3 1.6.5-1jpp_1rh
  • axis certificate system 7.3 1.2.1-1jpp_3rh
  • mx4j certificate system 7.3 1:3.0.1-1jpp_4rh
  • log4j certificate system 7.3 1.2.12-1jpp_1rh
  • tomcat5 certificate system 7.3 5.5.23-0jpp_4rh.16
  • rhpki-ca certificate system 7.3 7.3.0-20.el4
  • pcsc-lite certificate system 7.3 1.3.3-3.el4
  • rhpki-kra certificate system 7.3 7.3.0-14.el4

red hat advisories RHSA-2010:0602RHSA-2008:0523RHSA-2006:0619

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2006-3918 updated

httpd: Expect header XSS

  • Red Hat Certificate System 7.3 for 4AS ant 1.6.5-1jpp_1rh, axis 1.2.1-1jpp_3rh, mx4j 3.0.1-1jpp_4rh, log4j 1.2.12-1jpp_1rh, pcsc-lite 1.3.3-3.el4, rhpki-ca 7.3.0-20.el4, +31 more Red Hat Certificate System 7.3 for 4ES ant 1.6.5-1jpp_1rh, axis 1.2.1-1jpp_3rh, mx4j 3.0.1-1jpp_4rh, log4j 1.2.12-1jpp_1rh, pcsc-lite 1.3.3-3.el4, rhpki-ca 7.3.0-20.el4, +31 more
    fixed: vendor fix RHSA-2010:0602
  • Red Hat Desktop version 3 httpd 2.0.46-61.ent, mod_ssl 2.0.46-61.ent Red Hat Enterprise Linux AS version 3 httpd 2.0.46-61.ent, mod_ssl 2.0.46-61.ent Red Hat Enterprise Linux AS version 4 httpd 2.0.52-28.ent, mod_ssl 2.0.52-28.ent, httpd-manual 2.0.52-28.ent, httpd-suexec 2.0.52-28.ent Red Hat Enterprise Linux Desktop version 4 httpd 2.0.52-28.ent, mod_ssl 2.0.52-28.ent, httpd-manual 2.0.52-28.ent, httpd-suexec 2.0.52-28.ent
    fixed: vendor fix RHSA-2006:0619
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2006:0618
  • Red Hat Enterprise Linux ES version 3 httpd 2.0.46-61.ent, mod_ssl 2.0.46-61.ent Red Hat Enterprise Linux ES version 4 httpd 2.0.52-28.ent, mod_ssl 2.0.52-28.ent, httpd-manual 2.0.52-28.ent, httpd-suexec 2.0.52-28.ent
    fixed: vendor fix RHSA-2006:0619
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2006:0618
  • Red Hat Enterprise Linux WS version 3 httpd 2.0.46-61.ent, mod_ssl 2.0.46-61.ent Red Hat Enterprise Linux WS version 4 httpd 2.0.52-28.ent, mod_ssl 2.0.52-28.ent, httpd-manual 2.0.52-28.ent, httpd-suexec 2.0.52-28.ent
    fixed: vendor fix RHSA-2006:0619
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2006:0618
  • Red Hat Satellite Proxy v 4.2 (RHEL v.3 AS) jabberd 2.0s10-3.37.rhn, rhn-modperl 1.29-16.rhel3, rhn-apache 1.3.27-36.rhn.rhel3 Red Hat Satellite Proxy v 4.2 (RHEL v.4 AS) jabberd 2.0s10-3.38.rhn, rhn-modperl 1.29-16.rhel4, rhn-apache 1.3.27-36.rhn.rhel4
    fixed: vendor fix RHSA-2008:0523
show 1 more
  • Red Hat Stronghold 4.0 for Red Hat Enterprise Linux AS (version 2.1)
    fixed: vendor fix RHSA-2006:0692

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-28424)

Exploit prediction

95.14% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-28424 Apache 1.3.35/2.0.58/2.2.2 - Arbitrary HTTP Request Headers Security remote, 2006-08-24
  • svn.apache.org http://svn.apache.org/viewvc?view=rev&revision=394965 referenced PoC, tagged "exploit" by a source, unverified
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2006-07/0425.html referenced PoC, tagged "exploit" by a source, unverified
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2006-05/0151.html referenced PoC, tagged "exploit" by a source, unverified
  • securityreason.com http://securityreason.com/securityalert/1294 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.