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MEDIUM severity

CVE-2009-1523 — jetty

MEDIUM

CVE-2009-1523 is a medium-severity (CVSS 5.3) Path Traversal vulnerability in org.mortbay.jetty:jetty. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.mortbay.jetty:jetty — see the affected versions and patch details below.

Directory traversal in Mort Bay Jetty

Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
2 known
Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
25.8%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs98th percentile — riskier than 98% of all scored CVEsHighest risk
8.09%15.4%22.6%29.9%12.2%25.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
☕org.mortbay.jetty:jetty☕org.mortbay.jetty:jetty

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Directory traversal vulnerability in the HTTP server in Mort Bay Jetty 5.1.14, 6.x before 6.1.17, and 7.x through 7.0.0.M2 allows remote attackers to access arbitrary files via directory traversal sequences in the URI.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.mortbay.jetty:jettyall versions6.1.17org.mortbay.jetty:jetty:6.1.17
☕Mavenorg.mortbay.jetty:jetty≥ 7.0.0.M0&&< 7.0.0.M27.0.0.M2org.mortbay.jetty:jetty:7.0.0.M2

Affected Products

1 product · 332 configurations
Application
jettymortbay
≤ 7.0.0
187 versions
1.01.0.11.11.1.11.2.01.3.01.3.11.3.21.3.31.3.41.3.52.0
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-36318remotewindows✓ Verified

Jetty Web Server - Directory Traversal

by Alexey Sintsov · Nov 18, 2011

Exploit-DB Source
EDB-18138remotewindows

VMware - Update Manager Directory Traversal

by Alexey Sintsov · Nov 21, 2011

Exploit-DB Source

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.mortbay.jetty:jetty, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.mortbay.jetty:jetty to 6.1.17 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2009-1523 is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

Directory traversal vulnerability in the HTTP server in Mort Bay Jetty 5.1.14, 6.x before 6.1.17, and 7.x through 7.0.0.M2 allows remote attackers to access arbitrary files via directory traversal sequences in the URI.
O3 Security · Impact-Aware SCA

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CVE-2009-1523: jetty Path Traversal — Fixed in 6.1.17