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CVE-2009-4611

Improper input validation in Mort Bay Jetty

7.5 HighFix available

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

Exploit likelihood

3.25%Up 2.0 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

Record
CVE-2009-4611
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

Record
CVE-2009-4611
Updated
2026-11-02
EUVDEUVD-2022-2817 No score

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

Record
EUVD-2022-2817
Updated
2026-11-03
GitHub AdvisoriesGHSA-6jxp-7g74-2rc3 7.3

Improper input validation in Mort Bay Jetty

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

Record
GHSA-6jxp-7g74-2rc3
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-20
Updated
2026-11-02
OSVGHSA-6jxp-7g74-2rc3 7.3

Improper input validation in Mort Bay Jetty

Mort Bay Jetty 6.x through 6.1.22 and 7.0.0 writes backtrace data without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator, related to (1) a string value in the Age parameter to the default URI for the Cookie Dump Servlet in test-jetty-webapp/src/main/java/com/acme/CookieDump.java under cookie/, (2) an alphabetic value in the A parameter to jsp/expr.jsp, or (3) an alphabetic value in the Content-Length HTTP header to an arbitrary application.

Record
GHSA-6jxp-7g74-2rc3
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-20
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.mortbay.jetty:jetty
Maven
6.0.0 up to 6.1.23
6.1.23
org.mortbay.jetty:jetty
Maven
7.0.0 up to 7.0.2
7.0.2
org.mortbay.jetty:jetty
Maven
6.0.0 up to 6.1.23, plus listed versions
6.0.16.0.26.1.06.1.0pre06.1.0pre1
Show 45 moreShow less
6.1.0pre26.1.0pre36.1.0rc06.1.0rc16.1.0rc26.1.0rc36.1.16.1.106.1.116.1.126.1.12.rc26.1.12.rc36.1.12.rc46.1.12.rc56.1.12rc16.1.146.1.156.1.15.pre06.1.15.rc26.1.15.rc36.1.15.rc46.1.15.rc56.1.166.1.176.1.186.1.196.1.1rc06.1.1rc16.1.26.1.206.1.216.1.226.1.2pre06.1.2pre16.1.2rc06.1.2rc16.1.2rc26.1.2rc46.1.2rc56.1.36.1.46.1.4rc06.1.4rc16.1.56.1.5rc0
6.1.23
org.mortbay.jetty:jetty
Maven
7.0.0 up to 7.0.2, plus listed versions
7.0.0.pre47.0.0.pre57.0.0pre07.0.0pre17.0.0pre27.0.0pre3
7.0.2

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-4611 is a high vulnerability (CVSS 7.5) in Mortbay Jetty, published January 13, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.25%, the 88th percentile. Fixed in org.mortbay.jetty:jetty 6.1.23.

References

This page doesn't list everything

Left out here: 16 versions. The JSON record has them.

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