Skip to content
Not rated

CVE-2023-6209 Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be…

Description

Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

Affected products and versions

Product Affected versions Fixed in
Firefox 120 earliest → < 120 120
Firefox ESR 115.5 earliest → < 115.5.0 115.5.0
Thunderbird 115.5 earliest → < 115.5 115.5
The 2221 CVEs of Firefox →
Track this CVE