Which products and versions are affected by CVE-2003-0042?

Affected: Tomcat (Apache) versions 3.0, 3.1, 3.1.1, 3.2, 3.2.1, 3.2.3, 3.2.4, 3.3; org.apache.tomcat:tomcat (maven). The full list is in the CVE brief.

Is CVE-2003-0042 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2003-0042 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2003-0042?

Public exploit code is available.

Is there a fix for CVE-2003-0042?

Fixed versions are available, including org.apache.tomcat:tomcat 3.3.1a, Tomcat 3.3a-4woody.1.

How urgently should CVE-2003-0042 be patched?

Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Request A Demo

WatchlistMedium

CVE-2003-0042Tomcat Path Traversal

Jakarta Tomcat Directory Listing vulnerability

Published Apr 29, 2022 · Updated Mar 9, 2026 · Also known as DEBIAN-CVE-2003-0042, DEBIAN-CVE-2003-0043, DEBIAN-CVE-2003-0044, DSA-246, GHSA-qfw2-wvrw-mvw4

Key Facts

Routine patching

CVE-2003-0042 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Tomcat (Apache), org.apache.tomcat:tomcat (maven).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 46% probability of exploitation in the next 30 days.
Fixed versions are available, including org.apache.tomcat:tomcat 3.3.1a, Tomcat 3.3a-4woody.1.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Scores

CVSS v2

5.0

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS (30-day exploit likelihood)

46%

Higher than 98.7% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

37/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2003-0042
advisoryhttp://jakarta.apache.org/builds/jakarta-tomcat/release/v3.3.1a/
advisoryGHSA advisory

Description

Jakarta Tomcat before 3.3.1a, when used with JDK 1.3.1 or earlier, allows remote attackers to list directories even with an index.html or other file present, or obtain unprocessed source code for a JSP file, via a URL containing a null character.

Affected Products

11 affected entries in total

Product	Affected versions	Fixed in
TomcatApache	3.0, 3.1, 3.1.1, 3.2, 3.2.1, 3.2.3, 3.2.4, 3.3	3.3a-4woody.1
org.apache.tomcat:tomcatmaven	See advisory	3.3.1a

Patched Releases

org.apache.tomcat:tomcat

3.3.1a

Tomcat

3.3a-4woody.1

Timeline

Publicly disclosed
Apr 29, 2022
Last updated
Mar 9, 2026

Weakness Type

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

References

10 more references in the full CVE brief

FAQ

Common Questions.

Jakarta Tomcat before 3.3.1a, when used with JDK 1.3.1 or earlier, allows remote attackers to list directories even with an index.html or other file present, or obtain unprocessed source code for a JSP file, via a URL containing a null character.
Affected: Tomcat (Apache) versions 3.0, 3.1, 3.1.1, 3.2, 3.2.1, 3.2.3, 3.2.4, 3.3; org.apache.tomcat:tomcat (maven). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including org.apache.tomcat:tomcat 3.3.1a, Tomcat 3.3a-4woody.1.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.

Is CVE-2003-0042 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.