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CVE-2021-28163

17
FAUCET Score

CVE-2021-28163 describes a vulnerability in Eclipse Jetty versions 9.4.32-9.4.38, 10.0.0.beta2-10.0.1, and 11.0.0.beta2-11.0.1, where using a symlinked webapps directory can inadvertently expose its contents as a static web application. This flaw, affecting products from Apache, Eclipse, FedoraProject, NetApp, and Oracle, has a low CVSS score of 2.7, indicating a low severity with potential for information disclosure (CWE-200, CWE-59) if a highly privileged attacker (PR:H) exploits it over the network (AV:N). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, suggesting a low immediate threat.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.4.32, < 9.4.39CPE matchmatch criteria
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
10.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:jetty:10.0.0:beta2:*:*:*:*:*:*
10.0.1CPE matchmatch criteria
cpe:2.3:a:eclipse:jetty:10.0.1:*:*:*:*:*:*:*
11.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:jetty:11.0.0:-:*:*:*:*:*:*
11.0.0CPE matchmatch criteria
cpe:2.3:a:eclipse:jetty:11.0.0:beta2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

2.7LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.18%
Probability of exploitation in next 30 days
EPSS Percentile
89.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0418 is in the 99th percentile among its peer group of 709 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (22)

mavenpatch availablevia ghsa
Product: org.eclipse.jetty:jetty-deployFixed in: 9.4.39
mavenpatch availablevia ghsa
Product: org.eclipse.jetty:jetty-deployFixed in: 10.0.2
mavenpatch availablevia ghsa
Product: org.eclipse.jetty:jetty-deployFixed in: 11.0.2
oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ Streams 1.8.0Fixed in: jetty-server
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Developer ToolsFixed in: rh-eclipse-jetty-0:9.4.40-1.1.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Fuse 7.10Fixed in: jetty
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Integration Camel Quarkus 2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.7Fixed in: runc-0:1.0.0-95.rhaos4.8.gitcd80260.el8
View patch
redhatpatch availablevia redhat_api
Product: RHAF Camel-K 1.8Fixed in: jetty
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.7Fixed in: jenkins-0:2.277.3.1620393611-1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ 7.8.2Fixed in: jetty-server
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ 7.9.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat AMQ Streams 1.6.4
View patch
redhatno patchvia redhat_api
Product: Red Hat Integration Service RegistryFixed in: jetty-server
redhatno patchvia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: jenkins
redhatno patchvia redhat_api
Product: Red Hat Integration Camel Quarkus 1Fixed in: jetty
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-presto
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: eclipse:rhel8/jetty
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: opendaylight
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hadoop
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: openshift4/ose-metering-hive

Vendor Advisories (2)

mavenGHSA-j6qj-j888-vvgqlow

Directory exposure in jetty

Apr 6, 2021
redhatCVE-2021-28163Moderate

jetty: Symlink directory exposes webapp directory contents

Apr 1, 2021

References

github.com / eclipse/jetty.project/security/advisories/GHSA-j6qj-j888-vvgq
ExploitThird Party Advisory
lists.apache.org / thread.html/r0841b06b48324cfc81325de3c05a92e53f997185f9d71ff47734d961%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/r111f1ce28b133a8090ca4f809a1bdf18a777426fc058dc3a16c39c66%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/r2ea2f0541121f17e470a0184843720046c59d4bde6d42bf5ca6fad81%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/r4a66bfbf62281e31bc1345ebecbfd96f35199eecd77bfe4e903e906f%40%3Cissues.ignite.apache.org%3E
lists.apache.org / thread.html/r4b1fef117bccc7f5fd4c45fd2cabc26838df823fe5ca94bc42a4fd46%40%3Cissues.ignite.apache.org%3E
lists.apache.org / thread.html/r5b3693da7ecb8a75c0e930b4ca26a5f97aa0207d9dae4aa8cc65fe6b%40%3Cissues.ignite.apache.org%3E
lists.apache.org / thread.html/r67c4f90658fde875521c949448c54c98517beecdc7f618f902c620ec%40%3Cissues.zookeeper.apache.org%3E
lists.apache.org / thread.html/r6ac9e263129328c0db9940d72b4a6062e703c58918dd34bd22cdf8dd%40%3Cissues.ignite.apache.org%3E
lists.apache.org / thread.html/r780c3c210a05c5bf7b4671303f46afc3fe56758e92864e1a5f0590d0%40%3Cjira.kafka.apache.org%3E
lists.apache.org / thread.html/r787e47297a614b05b99d01b04c8a1d6c0cafb480c9cb7c624a6b8fc3%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/r8a1a332899a1f92c8118b0895b144b27a78e3f25b9d58a34dd5eb084%40%3Cnotifications.zookeeper.apache.org%3E
lists.apache.org / thread.html/r9974f64723875052e02787b2a5eda689ac5247c71b827d455e5dc9a6%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/rbc075a4ac85e7a8e47420b7383f16ffa0af3b792b8423584735f369f%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/rbefa055282d52d6b58d29a79fbb0be65ab0a38d25f00bd29eaf5e6fd%40%3Cnotifications.zookeeper.apache.org%3E
lists.apache.org / thread.html/rd0471252aeb3384c3cfa6d131374646d4641b80dd313e7b476c47a9c%40%3Cissues.solr.apache.org%3E
lists.apache.org / thread.html/rd7c8fb305a8637480dc943ba08424c8992dccad018cd1405eb2afe0e%40%3Cdev.ignite.apache.org%3E
lists.apache.org / thread.html/rddbb4f8d5db23265bb63d14ef4b3723b438abc1589f877db11d35450%40%3Cissues.zookeeper.apache.org%3E
lists.apache.org / thread.html/rf36f1114e84a3379b20587063686148e2d5a39abc0b8a66ff2a9087a%40%3Cissues.zookeeper.apache.org%3E
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/5CXQIJVYU4R3JL6LSPXQ5GIV7WLLA7PI
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GGNKXBNRRCZTGGXPIX3VBWCF2SAM3DWS
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/HAAKW7S66TECXGJZWB3ZFGOQAK34IYHF
security.netapp.com / advisory/ntap-20210611-0006
Third Party Advisory
oracle.com / security-alerts/cpuapr2022.html
Not ApplicableThird Party Advisory
oracle.com / security-alerts/cpujan2022.html
PatchThird Party Advisory
oracle.com / security-alerts/cpuoct2021.html
PatchThird Party Advisory