Medium
Security advisory
In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-28164
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:48 UTC · Revision 1
Source evidence
In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.
osv:CVE-2021-28164
Complete source record
{
"id": "91eacef48d90558e4cec91d9c77933f1821b7ca168e29d30d1372e9f2fffcb1c",
"url": "https://osv.dev/vulnerability/CVE-2021-28164",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-28164",
"summary": "In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF directory. For example a request to /context/%2e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application.",
"evidence": "osv:CVE-2021-28164",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-28164",
"aliases": [
"CVE-2021-28164",
"GHSA-v7ff-8wcx-gmc5"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/jetty/jetty.project",
"type": "GIT",
"events": [
{
"introduced": "27afab2bd37780d179836e313e0fe11bc4fa0ce9"
},
{
"last_affected": "288f3cc74549e8a913bf363250b0744f2695b8e6"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:eclipse:jetty:9.4.37:20210219:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.37-20210219"
},
{
"last_affected": "9.4.37-20210219"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:eclipse:jetty:9.4.38:20210224:*:*:*:*:*:*",
"range": [
{
"introduced": "9.4.38-20210224"
},
{
"last_affected": "9.4.38-20210224"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"9.4.37-20210219",
"9.4.38-20210224",
"jetty-9.4.38.v20210224",
"jetty-9.4.37.v20210219"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28164.json"
}
}
],
"modified": "2026-10-24T10:50:23.836956501Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/r0841b06b48324cfc81325de3c05a92e53f997185f9d71ff47734d961%40%3Cissues.solr.apache.org%3E",
"https://lists.apache.org/thread.html/r111f1ce28b133a8090ca4f809a1bdf18a777426fc058dc3a16c39c66%40%3Cissues.solr.apache.org%3E",
"https://lists.apache.org/thread.html/r2a3ea27cca2ac7352d392b023b72e824387bc9ff16ba245ec663bdc6%40%3Cissues.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/r2ea2f0541121f17e470a0184843720046c59d4bde6d42bf5ca6fad81%40%3Cissues.solr.apache.org%3E",
"https://lists.apache.org/thread.html/r3c55b0baa4dc38958ae147b2f216e212605f1071297f845e14477d36%40%3Cissues.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/r4a66bfbf62281e31bc1345ebecbfd96f35199eecd77bfe4e903e906f%40%3Cissues.ignite.apache.org%3E",
"https://lists.apache.org/thread.html/r4b1fef117bccc7f5fd4c45fd2cabc26838df823fe5ca94bc42a4fd46%40%3Cissues.ignite.apache.org%3E",
"https://lists.apache.org/thread.html/r5b3693da7ecb8a75c0e930b4ca26a5f97aa0207d9dae4aa8cc65fe6b%40%3Cissues.ignite.apache.org%3E",
"https://lists.apache.org/thread.html/r6ac9e263129328c0db9940d72b4a6062e703c58918dd34bd22cdf8dd%40%3Cissues.ignite.apache.org%3E",
"https://lists.apache.org/thread.html/r763840320a80e515331cbc1e613fa93f25faf62e991974171a325c82%40%3Cdev.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/r780c3c210a05c5bf7b4671303f46afc3fe56758e92864e1a5f0590d0%40%3Cjira.kafka.apache.org%3E",
"https://lists.apache.org/thread.html/r7dd079fa0ac6f47ba1ad0af98d7d0276547b8a4e005f034fb1016951%40%3Cissues.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/r8e6c116628c1277c3cf132012a66c46a0863fa2a3037c0707d4640d4%40%3Cissues.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/r90e7b4c42a96d74c219e448bee6a329ab0cd3205c44b63471d96c3ab%40%3Cissues.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/r9974f64723875052e02787b2a5eda689ac5247c71b827d455e5dc9a6%40%3Cissues.solr.apache.org%3E",
"https://lists.apache.org/thread.html/rbc075a4ac85e7a8e47420b7383f16ffa0af3b792b8423584735f369f%40%3Cissues.solr.apache.org%3E",
"https://lists.apache.org/thread.html/rcea249eb7a0d243f21696e4985de33f3780399bf7b31ea1f6d489b8b%40%3Cissues.zookeeper.apache.org%3E",
"https://lists.apache.org/thread.html/rd0471252aeb3384c3cfa6d131374646d4641b80dd313e7b476c47a9c%40%3Cissues.solr.apache.org%3E",
"https://lists.apache.org/thread.html/rd7c8fb305a8637480dc943ba08424c8992dccad018cd1405eb2afe0e%40%3Cdev.ignite.apache.org%3E",
"https://github.com/eclipse/jetty.project/security/advisories/GHSA-v7ff-8wcx-gmc5",
"https://security.netapp.com/advisory/ntap-20210611-0006/",
"https://www.oracle.com/security-alerts/cpuapr2022.html",
"https://www.oracle.com/security-alerts/cpujan2022.html",
"https://www.oracle.com/security-alerts/cpuoct2021.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*"
],
"vendor_product": "netapp:e-series_santricity_os_controller",
"extracted_events": [
{
"range": [
{
"introduced": "11.0"
},
{
"last_affected": "11.70.1"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap:*:*:*:*:*:vmware_vsphere:*:*"
],
"vendor_product": "netapp:storage_replication_adapter_for_clustered_data_ontap",
"extracted_events": [
{
"range": [
{
"introduced": "9.6"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:*:*:*"
],
"vendor_product": "netapp:vasa_provider_for_clustered_data_ontap",
"extracted_events": [
{
"range": [
{
"introduced": "9.6"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:netapp:virtual_storage_console:*:*:*:*:*:vmware_vsphere:*:*"
],
"vendor_product": "netapp:virtual_storage_console",
"extracted_events": [
{
"range": [
{
"introduced": "9.6"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_session_route_manager",
"extracted_events": [
{
"range": [
{
"introduced": "8.0.0"
},
{
"last_affected": "8.2.4"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:siebel_core_-_automation:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:siebel_core_-_automation",
"extracted_events": [
{
"range": [
{
"last_affected": "21.9"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:eclipse:jetty:9.4.37:20210219:*:*:*:*:*:*",
"cpe:2.3:a:eclipse:jetty:9.4.38:20210224:*:*:*:*:*:*"
],
"vendor_product": "eclipse:jetty",
"extracted_events": [
{
"range": [
{
"introduced": "9.4.37-20210219"
},
{
"last_affected": "9.4.37-20210219"
},
{
"introduced": "9.4.38-20210224"
},
{
"last_affected": "9.4.38-20210224"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:autovue_for_agile_product_lifecycle_management:21.0.2:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:autovue_for_agile_product_lifecycle_management",
"extracted_events": [
{
"range": [
{
"introduced": "21.0.2"
},
{
"last_affected": "21.0.2"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:banking_apis:20.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:banking_apis:21.1:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:banking_apis",
"extracted_events": [
{
"range": [
{
"introduced": "20.1"
},
{
"last_affected": "20.1"
},
{
"introduced": "21.1"
},
{
"last_affected": "21.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:banking_digital_experience:20.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:banking_digital_experience:21.1:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:banking_digital_experience",
"extracted_events": [
{
"range": [
{
"introduced": "20.1"
},
{
"last_affected": "20.1"
},
{
"introduced": "21.1"
},
{
"last_affected": "21.1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-28164",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 442101,
"published_at": "2021-04-01T15:15:14.157+00:00"
}