Skip to content
CVE Tracker
  • Newest CVEsPage
  • Recently added to KEVPage
  • Rising exploitation (EPSS)Page
  • Weekly digestPage
  • StatisticsPage
  • WatchlistPage
  • API documentationPage
  • MCP serverPage
  • Data sourcesPage
  • ChangelogPage
  • AboutPage
  • How it's builtPage
Back

CVE-2006-2786

HTTP response smuggling vulnerability in Mozilla Firefox and Thunderbird before 1.5.0.4, when used with certain proxy servers, allows…

Low2.6EPSS 1.8%
Published
Updated
Reserved
Assigned by
mitre

Description

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.

Scores

CVSS scores of CVE-2006-2786, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Low2.6AV:N/AC:H/Au:N/C:N/I:P/A:N
EPSS (exploitation in 30 days)
1.8% · top 22% of all CVEs (5 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.

Weakness

  • n/a

Affected products

  • n/a

    • affected n/a

References (47)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2006-2786 badge
[![CVE-2006-2786](https://trackcve.app/badge/CVE-2006-2786.svg)](https://trackcve.app/cve/CVE-2006-2786)

Record last updated .