{"id":"UBUNTU-CVE-2026-59990","details":"Jawn is an open source JSON parser. Prior to 1.7.0, Jawn parse methods accept arbitrarily deep JSON array and object nesting without a depth limit, allowing a remote attacker who can submit untrusted JSON to grow parser contexts until the JVM heap is exhausted. The resulting java.lang.OutOfMemoryError is a fatal Scala error that is not ordinarily handled by scala.util.Try or cats.effect.IO, causing denial of service. This issue is fixed in version 1.7.0.","modified":"2026-09-25T06:36:30.903343077Z","published":"2026-09-24T00:00:00Z","upstream":["CVE-2026-59990"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-59990"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-59990"},{"type":"REPORT","url":"https://github.com/typelevel/jawn/commit/191cb3a44e77f1afab439ee636bf66bdf3c54a04"},{"type":"REPORT","url":"https://github.com/typelevel/jawn/commit/6219666641f9408498f85868f835e17bd8a72fed"},{"type":"REPORT","url":"https://github.com/typelevel/jawn/commit/93ac93e9c992c11b4c03d5455d8551f9fb24da1b"},{"type":"REPORT","url":"https://github.com/typelevel/jawn/commit/f6ace7e0db715de1a8c4618bed9378333a5c2214"},{"type":"REPORT","url":"https://github.com/typelevel/jawn/releases/tag/v1.7.0"},{"type":"REPORT","url":"https://github.com/typelevel/jawn/security/advisories/GHSA-cc4v-rvgp-2pf3"}],"affected":[{"package":{"name":"jawn","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/jawn?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.1+really0.6.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.11.1+really0.6.0-1","binary_name":"libjawn-java"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59990.json"}},{"package":{"name":"jawn","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/jawn?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.1+really0.6.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjawn-java","binary_version":"0.11.1+really0.6.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59990.json"}},{"package":{"name":"jawn","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/jawn?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.1+really0.6.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjawn-java","binary_version":"0.11.1+really0.6.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59990.json"}},{"package":{"name":"jawn","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/jawn?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.1+really0.6.0-1","0.11.1+really0.6.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjawn-java","binary_version":"0.11.1+really0.6.0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-59990.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"}]}