{"id":"UBUNTU-CVE-2026-95155","details":"FasterXML Jackson 1.x, confirmed in jackson-mapper-asl versions 1.8.3, 1.9.2, 1.9.11, 1.9.12, and 1.9.13, allows attackers to cause a denial of service by supplying deeply nested JSON input to an application that deserializes untrusted JSON using ObjectMapper.readValue.","modified":"2026-10-17T13:01:19.352297782Z","published":"2026-10-16T00:00:00Z","upstream":["CVE-2026-95155"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-95155"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-95155"},{"type":"REPORT","url":"https://github.com/FasterXML/jackson-1"},{"type":"REPORT","url":"https://github.com/FasterXML/jackson-1/issues/11"}],"affected":[{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.2-1","1.9.2-2","1.9.2-3","1.9.2-3+deb8u1build0.14.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjackson-json-java","binary_version":"1.9.2-3+deb8u1build0.14.04.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.2-3","1.9.2-4","1.9.2-5","1.9.2-6","1.9.2-7","1.9.2-7ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjackson-json-java","binary_version":"1.9.2-7ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.2-8","1.9.2-9","1.9.13-1~18.04"],"ecosystem_specific":{"binaries":[{"binary_name":"libjackson-json-java","binary_version":"1.9.13-1~18.04"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.13-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjackson-json-java","binary_version":"1.9.13-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.13-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjackson-json-java","binary_version":"1.9.13-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.13-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.13-2","binary_name":"libjackson-json-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.13-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjackson-json-java","binary_version":"1.9.13-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}},{"package":{"name":"libjackson-json-java","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libjackson-json-java?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.9.13-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.13-2","binary_name":"libjackson-json-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95155.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}