{"id":"UBUNTU-CVE-2026-38974","details":"Dulwich through 1.1.0 was found to be missing SSH host key verification in contrib/paramiko_vendor.py.","modified":"2026-07-22T11:41:14.487405137Z","published":"2026-07-15T22:16:00Z","upstream":["CVE-2026-38974"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-38974"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-38974"}],"affected":[{"package":{"name":"dulwich","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dulwich?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.2-1ubuntu1","0.12.0-1","0.12.0-1build1","0.12.0-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"pypy-dulwich","binary_version":"0.12.0-1build2"},{"binary_version":"0.12.0-1build2","binary_name":"python-dulwich"},{"binary_name":"python3-dulwich","binary_version":"0.12.0-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38974.json"}},{"package":{"name":"dulwich","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/dulwich?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18.2-1build1","0.18.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"pypy-dulwich","binary_version":"0.18.5-1"},{"binary_name":"python-dulwich","binary_version":"0.18.5-1"},{"binary_version":"0.18.5-1","binary_name":"python3-dulwich"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38974.json"}},{"package":{"name":"dulwich","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/dulwich?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.19.11-2","0.19.14-4ubuntu1","0.19.15-1","0.19.15-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"pypy-dulwich","binary_version":"0.19.15-1build1"},{"binary_name":"python3-dulwich","binary_version":"0.19.15-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38974.json"}},{"package":{"name":"dulwich","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/dulwich?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.20.15-1ubuntu1","0.20.31-1ubuntu1","0.20.31-1.1","0.20.31-1.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-dulwich","binary_version":"0.20.31-1.1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38974.json"}},{"package":{"name":"dulwich","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/dulwich?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.21.6-1","0.21.6-1build1","0.21.6-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-dulwich","binary_version":"0.21.6-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38974.json"}},{"package":{"name":"dulwich","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/dulwich?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.22.7-1","0.24.2-2","1.1.0-2ubuntu1","1.1.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-dulwich","binary_version":"1.1.0-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38974.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:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}