CVE-2009-5048: Cookie Dump Servlet stored XSS vulnerability in jetty though 6.1.20.

Q: How do I fix CVE-2009-5048?

jetty: upgrade to newer than 6.1.20. Exact commands for each OS are on this page.

Q: Is CVE-2009-5048 being exploited?

CVE-2009-5048 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2009-5048 affect?

CVE-2009-5048 affects jetty. Severity is medium (CVSS 6.1). Cookie Dump Servlet stored XSS vulnerability in jetty though 6.1.20.

Q: How urgent is CVE-2009-5048?

Priority 45/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2009-5048 is a medium-severity flaw (CVSS 6.1) affecting jetty. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cookie Dump Servlet stored XSS vulnerability in jetty though 6.1.20.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2019-11-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mortbay

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

Am I affected?

Timeline

2019-11-06 19:15 UTCPublished CVE record published
2026-06-16 23:14 UTCUpdated Record last modified

mortbay jetty UPGRADE

Affected: <= 6.1.20

Fixed in: newer than 6.1.20

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 6.1.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jetty

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jetty

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2009-5048?

jetty: upgrade to newer than 6.1.20. Exact commands for each OS are on this page.

Is CVE-2009-5048 being exploited?

CVE-2009-5048 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-2009-5048 affect?

CVE-2009-5048 affects jetty. Severity is medium (CVSS 6.1). Cookie Dump Servlet stored XSS vulnerability in jetty though 6.1.20.

How urgent is CVE-2009-5048?

Priority 45/100. Public exploit reference

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References

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