{"schema_version":1,"title":"io.undertow:undertow-core (Maven) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 13 vulnerabilities in io.undertow:undertow-core (Maven): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-3260, was published on 24 March 2026.","url":"https://junglewise.ai/threats/technologies/io-undertow-undertow-core","json_url":"https://junglewise.ai/threats/technologies/io-undertow-undertow-core.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/io-undertow-undertow-core","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":13,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":1},"latest":[{"cve":"CVE-2026-3260","cvss":5.9,"epss":0.0044,"slug":"cve-2026-3260-red-hat-undertow-resource-exhaustion-in-http-request-parsing","title":"Red Hat Undertow resource exhaustion in HTTP request parsing","severity":"medium","exploited":false,"published_at":"2026-03-24T05:16:24.073+00:00","url":"https://junglewise.ai/threats/cve-2026-3260-red-hat-undertow-resource-exhaustion-in-http-request-parsing"},{"cve":"CVE-2024-4109","cvss":3.1,"slug":"cve-2024-4109-withdrawn-advisory-undertow-information-leakage-via-http-2-request","title":"Withdrawn Advisory: undertow: information leakage via HTTP/2 request header reuse","severity":"low","exploited":false,"published_at":"2024-12-12T09:31:36+00:00","url":"https://junglewise.ai/threats/cve-2024-4109-withdrawn-advisory-undertow-information-leakage-via-http-2-request"},{"cve":"CVE-2021-3859","cvss":3.1,"epss":0.0164,"slug":"cve-2021-3859-undertow-vulnerable-to-denial-of-service-dos-attacks","title":"Undertow vulnerable to Denial of Service (DoS) attacks","severity":"low","exploited":false,"published_at":"2022-07-15T21:32:13+00:00","url":"https://junglewise.ai/threats/cve-2021-3859-undertow-vulnerable-to-denial-of-service-dos-attacks"},{"cve":"CVE-2020-1745","cvss":3,"epss":0.0496,"slug":"cve-2020-1745-improper-authorization-in-undertoe","title":"Improper Authorization in Undertoe","severity":"low","exploited":false,"published_at":"2022-05-24T17:16:46+00:00","url":"https://junglewise.ai/threats/cve-2020-1745-improper-authorization-in-undertoe"},{"cve":"CVE-2020-1757","cvss":3,"epss":0.0158,"slug":"cve-2020-1757-improper-input-validation-in-undertow","title":"Improper Input Validation in Undertow","severity":"low","exploited":false,"published_at":"2022-05-24T17:15:56+00:00","url":"https://junglewise.ai/threats/cve-2020-1757-improper-input-validation-in-undertow"},{"cve":"CVE-2019-14888","cvss":3.1,"epss":0.0214,"slug":"cve-2019-14888-undertow-vulnerable-to-uncontrolled-resource-consumption","title":"Undertow vulnerable to Uncontrolled Resource Consumption","severity":"low","exploited":false,"published_at":"2022-05-24T17:07:10+00:00","url":"https://junglewise.ai/threats/cve-2019-14888-undertow-vulnerable-to-uncontrolled-resource-consumption"},{"cve":"CVE-2018-14642","cvss":3.1,"epss":0.0211,"slug":"cve-2018-14642-exposure-of-sensitive-information-to-an-unauthorized-actor-in","title":"Exposure of Sensitive Information to an Unauthorized Actor in Undertow","severity":"low","exploited":false,"published_at":"2022-05-13T01:12:21+00:00","url":"https://junglewise.ai/threats/cve-2018-14642-exposure-of-sensitive-information-to-an-unauthorized-actor-in"},{"cve":"CVE-2020-10687","cvss":3.1,"epss":0.0115,"slug":"cve-2020-10687-http-request-smuggling-in-undertow","title":"HTTP Request Smuggling in Undertow","severity":"low","exploited":false,"published_at":"2021-04-30T17:28:52+00:00","url":"https://junglewise.ai/threats/cve-2020-10687-http-request-smuggling-in-undertow"},{"cve":"CVE-2020-10705","cvss":3.1,"epss":0.0119,"slug":"cve-2020-10705-allocation-of-resources-without-limits-or-throttling-in-undertow","title":"Allocation of Resources Without Limits or Throttling in Undertow","severity":"low","exploited":false,"published_at":"2021-04-30T17:28:42+00:00","url":"https://junglewise.ai/threats/cve-2020-10705-allocation-of-resources-without-limits-or-throttling-in-undertow"},{"cve":"CVE-2020-10719","cvss":3.1,"epss":0.0101,"slug":"cve-2020-10719-http-request-smuggling-in-undertow","title":"HTTP Request Smuggling in Undertow","severity":"low","exploited":false,"published_at":"2021-04-30T17:28:33+00:00","url":"https://junglewise.ai/threats/cve-2020-10719-http-request-smuggling-in-undertow"},{"cve":"CVE-2019-10212","cvss":3.1,"epss":0.0189,"slug":"cve-2019-10212-potential-to-access-user-credentials-from-the-log-files-when","title":"Potential to access user credentials from the log files when debug logging enabled","severity":"low","exploited":false,"published_at":"2019-11-20T01:33:54+00:00","url":"https://junglewise.ai/threats/cve-2019-10212-potential-to-access-user-credentials-from-the-log-files-when"},{"cve":"CVE-2019-3888","cvss":3.1,"epss":0.0303,"slug":"cve-2019-3888-credential-exposure-through-log-files-in-undertow","title":"Credential exposure through log files in Undertow","severity":"low","exploited":false,"published_at":"2019-06-13T20:02:56+00:00","url":"https://junglewise.ai/threats/cve-2019-3888-credential-exposure-through-log-files-in-undertow"},{"cve":"CVE-2017-2670","cvss":3,"epss":0.0366,"slug":"cve-2017-2670-moderate-severity-vulnerability-that-affects-io-undertow-undertow","title":"Moderate severity vulnerability that affects io.undertow:undertow-core","severity":"low","exploited":false,"published_at":"2018-10-19T16:54:56+00:00","url":"https://junglewise.ai/threats/cve-2017-2670-moderate-severity-vulnerability-that-affects-io-undertow-undertow"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"com.liferay.portal:release.portal.bom (Maven)","slug":"com-liferay-portal-release-portal-bom","vulnerabilities":92,"url":"https://junglewise.ai/threats/technologies/com-liferay-portal-release-portal-bom"},{"name":"org.keycloak:keycloak-services (Maven)","slug":"org-keycloak-keycloak-services","vulnerabilities":76,"url":"https://junglewise.ai/threats/technologies/org-keycloak-keycloak-services"},{"name":"org.keycloak:keycloak-core (Maven)","slug":"org-keycloak-keycloak-core","vulnerabilities":56,"url":"https://junglewise.ai/threats/technologies/org-keycloak-keycloak-core"},{"name":"org.apache.struts:struts2-core (Maven)","slug":"org-apache-struts-struts2-core","vulnerabilities":40,"url":"https://junglewise.ai/threats/technologies/org-apache-struts-struts2-core"},{"name":"net.mingsoft:ms-mcms (Maven)","slug":"net-mingsoft-ms-mcms","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/net-mingsoft-ms-mcms"},{"name":"com.thoughtworks.xstream:xstream (Maven)","slug":"com-thoughtworks-xstream-xstream","vulnerabilities":37,"url":"https://junglewise.ai/threats/technologies/com-thoughtworks-xstream-xstream"},{"name":"com.jfinal:jfinal (Maven)","slug":"com-jfinal-jfinal","vulnerabilities":36,"url":"https://junglewise.ai/threats/technologies/com-jfinal-jfinal"},{"name":"org.jenkins-ci.plugins:script-security (Maven)","slug":"org-jenkins-ci-plugins-script-security","vulnerabilities":36,"url":"https://junglewise.ai/threats/technologies/org-jenkins-ci-plugins-script-security"},{"name":"org.apache.tomcat:tomcat (Maven)","slug":"org-apache-tomcat-tomcat","vulnerabilities":35,"url":"https://junglewise.ai/threats/technologies/org-apache-tomcat-tomcat"},{"name":"com.liferay.portal:release.dxp.bom (Maven)","slug":"com-liferay-portal-release-dxp-bom","vulnerabilities":34,"url":"https://junglewise.ai/threats/technologies/com-liferay-portal-release-dxp-bom"},{"name":"org.opencms:opencms-core (Maven)","slug":"org-opencms-opencms-core","vulnerabilities":31,"url":"https://junglewise.ai/threats/technologies/org-opencms-opencms-core"},{"name":"org.keycloak:keycloak-parent (Maven)","slug":"org-keycloak-keycloak-parent","vulnerabilities":26,"url":"https://junglewise.ai/threats/technologies/org-keycloak-keycloak-parent"}],"technology":{"hub":true,"name":"io.undertow:undertow-core (Maven)","slug":"io-undertow-undertow-core","vendor":{"name":"Maven","slug":"maven","url":"https://junglewise.ai/threats/vendors/maven"},"aliases":[],"homepage":"https://undertow.io/","repo_url":"https://github.com/undertow-io/undertow","description":"A core engine for the Undertow web server providing blocking and non-blocking HTTP handlers.","url":"https://junglewise.ai/threats/technologies/io-undertow-undertow-core"},"most_severe":[{"cve":"CVE-2026-3260","cvss":5.9,"epss":0.0044,"slug":"cve-2026-3260-red-hat-undertow-resource-exhaustion-in-http-request-parsing","title":"Red Hat Undertow resource exhaustion in HTTP request parsing","severity":"medium","exploited":false,"published_at":"2026-03-24T05:16:24.073+00:00","url":"https://junglewise.ai/threats/cve-2026-3260-red-hat-undertow-resource-exhaustion-in-http-request-parsing"},{"cve":"CVE-2019-3888","cvss":3.1,"epss":0.0303,"slug":"cve-2019-3888-credential-exposure-through-log-files-in-undertow","title":"Credential exposure through log files in Undertow","severity":"low","exploited":false,"published_at":"2019-06-13T20:02:56+00:00","url":"https://junglewise.ai/threats/cve-2019-3888-credential-exposure-through-log-files-in-undertow"},{"cve":"CVE-2019-14888","cvss":3.1,"epss":0.0214,"slug":"cve-2019-14888-undertow-vulnerable-to-uncontrolled-resource-consumption","title":"Undertow vulnerable to Uncontrolled Resource Consumption","severity":"low","exploited":false,"published_at":"2022-05-24T17:07:10+00:00","url":"https://junglewise.ai/threats/cve-2019-14888-undertow-vulnerable-to-uncontrolled-resource-consumption"},{"cve":"CVE-2018-14642","cvss":3.1,"epss":0.0211,"slug":"cve-2018-14642-exposure-of-sensitive-information-to-an-unauthorized-actor-in","title":"Exposure of Sensitive Information to an Unauthorized Actor in Undertow","severity":"low","exploited":false,"published_at":"2022-05-13T01:12:21+00:00","url":"https://junglewise.ai/threats/cve-2018-14642-exposure-of-sensitive-information-to-an-unauthorized-actor-in"},{"cve":"CVE-2019-10212","cvss":3.1,"epss":0.0189,"slug":"cve-2019-10212-potential-to-access-user-credentials-from-the-log-files-when","title":"Potential to access user credentials from the log files when debug logging enabled","severity":"low","exploited":false,"published_at":"2019-11-20T01:33:54+00:00","url":"https://junglewise.ai/threats/cve-2019-10212-potential-to-access-user-credentials-from-the-log-files-when"},{"cve":"CVE-2021-3859","cvss":3.1,"epss":0.0164,"slug":"cve-2021-3859-undertow-vulnerable-to-denial-of-service-dos-attacks","title":"Undertow vulnerable to Denial of Service (DoS) attacks","severity":"low","exploited":false,"published_at":"2022-07-15T21:32:13+00:00","url":"https://junglewise.ai/threats/cve-2021-3859-undertow-vulnerable-to-denial-of-service-dos-attacks"},{"cve":"CVE-2020-10705","cvss":3.1,"epss":0.0119,"slug":"cve-2020-10705-allocation-of-resources-without-limits-or-throttling-in-undertow","title":"Allocation of Resources Without Limits or Throttling in Undertow","severity":"low","exploited":false,"published_at":"2021-04-30T17:28:42+00:00","url":"https://junglewise.ai/threats/cve-2020-10705-allocation-of-resources-without-limits-or-throttling-in-undertow"},{"cve":"CVE-2020-10687","cvss":3.1,"epss":0.0115,"slug":"cve-2020-10687-http-request-smuggling-in-undertow","title":"HTTP Request Smuggling in Undertow","severity":"low","exploited":false,"published_at":"2021-04-30T17:28:52+00:00","url":"https://junglewise.ai/threats/cve-2020-10687-http-request-smuggling-in-undertow"},{"cve":"CVE-2020-10719","cvss":3.1,"epss":0.0101,"slug":"cve-2020-10719-http-request-smuggling-in-undertow","title":"HTTP Request Smuggling in Undertow","severity":"low","exploited":false,"published_at":"2021-04-30T17:28:33+00:00","url":"https://junglewise.ai/threats/cve-2020-10719-http-request-smuggling-in-undertow"},{"cve":"CVE-2024-4109","cvss":3.1,"slug":"cve-2024-4109-withdrawn-advisory-undertow-information-leakage-via-http-2-request","title":"Withdrawn Advisory: undertow: information leakage via HTTP/2 request header reuse","severity":"low","exploited":false,"published_at":"2024-12-12T09:31:36+00:00","url":"https://junglewise.ai/threats/cve-2024-4109-withdrawn-advisory-undertow-information-leakage-via-http-2-request"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}