{"id":"UBUNTU-CVE-2026-3389","details":"A vulnerability was determined in Squirrel up to 3.2. This vulnerability affects the function sqstd_rex_newnode in the library sqstdlib/sqstdrex.cpp. Executing a manipulation can lead to null pointer dereference. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.","modified":"2026-05-20T16:25:31.200307157Z","published":"2026-03-01T10:16:00Z","upstream":["CVE-2026-3389"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-3389"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-3389"},{"type":"REPORT","url":"https://github.com/albertodemichelis/squirrel/issues/314"},{"type":"REPORT","url":"https://github.com/oneafter/0122/blob/main/i314/repro"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.348275"},{"type":"REPORT","url":"https://vuldb.com/?id.348275"},{"type":"REPORT","url":"https://vuldb.com/?submit.761315"}],"affected":[{"package":{"name":"squirrel3","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/squirrel3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-4","3.1-5"],"ecosystem_specific":{"binaries":[{"binary_version":"3.1-5","binary_name":"libsquirrel3-0"},{"binary_version":"3.1-5","binary_name":"squirrel3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3389.json"}},{"package":{"name":"squirrel3","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/squirrel3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-8","3.1-8build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsquirrel3-0","binary_version":"3.1-8build1"},{"binary_version":"3.1-8build1","binary_name":"squirrel3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3389.json"}},{"package":{"name":"squirrel3","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/squirrel3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-8build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libsquirrel3-0","binary_version":"3.1-8build1"},{"binary_name":"squirrel3","binary_version":"3.1-8build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3389.json"}},{"package":{"name":"squirrel3","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/squirrel3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-8.2"],"ecosystem_specific":{"binaries":[{"binary_version":"3.1-8.2","binary_name":"libsquirrel3-0"},{"binary_name":"squirrel3","binary_version":"3.1-8.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3389.json"}},{"package":{"name":"squirrel3","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/squirrel3?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1-8.2","3.1-8.3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.1-8.3","binary_name":"libsquirrel3-0"},{"binary_name":"squirrel3","binary_version":"3.1-8.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-3389.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"},{"type":"Ubuntu","score":"medium"}]}