CVE-2003-0592: Konqueror in KDE 3.1.3 and earlier (kdelibs) allows remote attackers to bypass intended cookie access restrict

This month

HIGH 7.5DOWNGRADEDOWNGRADE

CVE-2003-0592 is a high-severity flaw (CVSS 7.5) affecting konqueror, konqueror embedded. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
EPSS top 9%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.4% (top 9%)
CISA exploited list	No
Published	2004-04-15
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: kde

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2004-04-15 04:00 UTCPublished CVE record published
2026-06-16 22:02 UTCUpdated Record last modified

kde konqueror DOWNGRADE

Affected: 2.1.1 · 2.2.2 · 3.0 · 3.0.1 · 3.0.2 · 3.0.3 · 3.0.5 · 3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.1

1. Check installed version

apt-cache policy konqueror || rpm -q konqueror || konqueror --version

2. No fixed release: DOWNGRADE to a release before 2.1.1 (Debian / Ubuntu)

apt-cache madison konqueror sudo apt install konqueror=<VERSION_BEFORE_2.1.1> sudo apt-mark hold konqueror

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list konqueror sudo dnf downgrade konqueror-<VERSION_BEFORE_2.1.1> sudo dnf versionlock add konqueror

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

kde konqueror embedded DOWNGRADE

Affected: 0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

apt-cache policy konqueror-embedded || rpm -q konqueror-embedded || konqueror-embedded --version

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison konqueror-embedded sudo apt install konqueror-embedded=<VERSION_BEFORE_0.1> sudo apt-mark hold konqueror-embedded

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list konqueror-embedded sudo dnf downgrade konqueror-embedded-<VERSION_BEFORE_0.1> sudo dnf versionlock add konqueror-embedded

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2003-0592?

konqueror: downgrade or apply the listed mitigation; konqueror embedded: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-0592 being exploited?

CVE-2003-0592 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2003-0592 affect?

CVE-2003-0592 affects konqueror, konqueror embedded. Severity is high (CVSS 7.5). 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 th

How urgent is CVE-2003-0592?

Priority 54/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2009-2537 MEDIUM 4.3 MITIGATE KDE Konqueror allows remote attackers to cause a denial of service (memory consumption) via a large integer va
CVE-2008-5712 MEDIUM 5.0 DOWNGRADE The HTML parser in KDE Konqueror 3.5.9 allows remote attackers to cause a denial of service (application crash
CVE-2008-5698 MEDIUM 4.3 MITIGATE HTMLTokenizer::scriptHandler in Konqueror in KDE 3.5.9 and 3.5.10 allows remote attackers to cause a denial of
CVE-2008-4514 MEDIUM 5.0 DOWNGRADE The HTML parser in KDE Konqueror 3.5.9 allows remote attackers to cause a denial of service (application crash
CVE-2008-4382 MEDIUM 5.0 DOWNGRADE Konqueror in KDE 3.5.9 allows remote attackers to cause a denial of service (application crash) via Javascript

References

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