Description
Konqueror in KDE 3.1.3 and earlier (kdelibs) allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences in a URL, which causes Konqueror to send the cookie outside the specified URL subsets, e.g. to a vulnerable application that runs on the same server as the target application.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗Advisories 1
- DSA-459 kdelibs - cookie path traversal Debian Security (DSA / DLA) · Mar 9, 2026
References
- 20040310 Corsaire Security Advisory: Multiple vendor HTTP user agent cookie path traversal issue mailing-list
- 20040310 Corsaire Security Advisory: Multiple vendor HTTP user agent cookie path traversal issue mailing-list
- DSA-459 vendor-advisory
- oval:org.mitre.oval:def:823 vdb-entry signature
- RHSA-2004:074 vendor-advisory
- MDKSA-2004:022 vendor-advisory