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TI-2006-02694 Aliases CVE-2006-2786GHSA-h93j-jrrw-xqfp

HTTP response smuggling vulnerability in Mozilla Firefox and Thunderbird before 1.5.0.4…

Priority LOW 17Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · Partial · None
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

HTTP response smuggling vulnerability in Mozilla Firefox and Thunderbird before 1.5.0.4, when used with certain proxy servers, allows remote attackers to cause Firefox to interpret certain responses as if they were responses from two different sites via (1) invalid HTTP response headers with spaces between the header name and the colon, which might not be ignored in some cases, or (2) HTTP 1.1 headers through an HTTP 1.0 proxy, which are ignored by the proxy but processed by the client.

Why it matters now

EPSS 0.01766 78th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*up to 1.5.0.3VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*up to 1.5.0.3VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions up to 1.5.0.3 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* Versions up to 1.5.0.3 Vulnerable ·Mozilla

Remediation

Red Hat 5 advisories

  • RHSA-2006:0594 Released 2006-08-28 · Red Hat rating Critical
    seamonkey security update (was mozilla)
    • Red Hat Enterprise Linux AS (Advanced Server) version 2.1
    • Red Hat Enterprise Linux ES version 2.1
    • Red Hat Enterprise Linux WS version 2.1
    • Red Hat Linux Advanced Workstation 2.1
  • RHSA-2006:0609 Released 2006-08-02 · Red Hat rating Critical
    seamonkey security update
    • Red Hat Enterprise Linux AS version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-0.10-0.2.el4.ppc +27
    • Red Hat Enterprise Linux Desktop version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +13
    • Red Hat Enterprise Linux ES version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +19
    • Red Hat Enterprise Linux WS version 4 devhelp-0.10-0.2.el4, devhelp-0.10-0.2.el4.i386, devhelp-devel-0.10-0.2.el4 +19
  • RHSA-2006:0611 Released 2006-07-29 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AS version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386
    • Red Hat Enterprise Linux ES version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64
    • Red Hat Enterprise Linux WS version 4 thunderbird-1.5.0.5-0.el4.1, thunderbird-1.5.0.5-0.el4.1.i386, thunderbird-1.5.0.5-0.el4.1.ia64
Show 2 more Red Hat advisories
  • RHSA-2006:0610 Released 2006-07-28 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AS version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386, firefox-1.5.0.5-0.el4.1.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386
    • Red Hat Enterprise Linux ES version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386, firefox-1.5.0.5-0.el4.1.ia64
    • Red Hat Enterprise Linux WS version 4 firefox-1.5.0.5-0.el4.1, firefox-1.5.0.5-0.el4.1.i386, firefox-1.5.0.5-0.el4.1.ia64
  • RHSA-2006:0578 Released 2006-07-20 · Red Hat rating Critical
    seamonkey security update (was mozilla)
    • Red Hat Desktop version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-chat-1.0.2-0.1.0.EL3 +17
    • Red Hat Enterprise Linux AS version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +37
    • Red Hat Enterprise Linux ES version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +27
    • Red Hat Enterprise Linux WS version 3 seamonkey-1.0.2-0.1.0.EL3, seamonkey-1.0.2-0.1.0.EL3.i386, seamonkey-1.0.2-0.1.0.EL3.ia64 +27

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Desktop version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 Fixed RHSA-2006:0594
Red Hat Enterprise Linux AS version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux AS version 4Fixed RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611
Red Hat Enterprise Linux ES version 2.1Fixed RHSA-2006:0594
Red Hat Enterprise Linux ES version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux ES version 4Fixed RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611
Red Hat Enterprise Linux WS version 2.1Fixed RHSA-2006:0594
Red Hat Enterprise Linux WS version 3Fixed RHSA-2006:0578
Red Hat Enterprise Linux WS version 4Fixed RHSA-2006:0609, RHSA-2006:0610, RHSA-2006:0611
Red Hat Linux Advanced Workstation 2.1Fixed RHSA-2006:0594

Timeline

  1. 2026-10-02 Threatist record created from CVE-2006-2786
  2. 2026-10-03 Alias added: GHSA-h93j-jrrw-xqfp

References

Advisory 18

Other 5

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences