{"id":"UBUNTU-CVE-2018-1048","details":"It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.","modified":"2026-04-02T18:09:13.444292Z","published":"2018-01-24T23:29:00Z","upstream":["CVE-2018-1048"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1048"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1534343"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1048"}],"affected":[{"package":{"name":"undertow","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/undertow@1.3.16-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.4-1","1.3.5-1","1.3.7-1","1.3.11-1","1.3.16-1","1.3.16-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.16-1ubuntu0.1~esm1","binary_name":"libundertow-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1048.json"}},{"package":{"name":"undertow","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/undertow@1.4.23-3ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.20-1","1.4.21-1","1.4.22-1","1.4.23-1","1.4.23-2build1","1.4.23-3","1.4.23-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.23-3ubuntu0.1~esm1","binary_name":"libundertow-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1048.json"}},{"package":{"name":"undertow","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/undertow@2.0.29-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.23-1","2.0.27-1","2.0.28-1","2.0.29-1","2.0.29-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.29-1ubuntu0.1~esm1","binary_name":"libundertow-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1048.json"}},{"package":{"name":"undertow","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/undertow@2.2.16-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.8-1","2.2.12-1","2.2.13-1","2.2.14-1","2.2.16-1","2.2.16-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2.16-1ubuntu0.1~esm1","binary_name":"libundertow-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1048.json"}},{"package":{"name":"undertow","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/undertow@2.3.8-2ubuntu0.1~esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.8-2","2.3.8-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.8-2ubuntu0.1~esm1","binary_name":"libundertow-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1048.json"}},{"package":{"name":"undertow","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/undertow@2.3.18-2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.18-1","2.3.18-2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.18-2","binary_name":"libundertow-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1048.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}