{"id":"UBUNTU-CVE-2026-11527","details":"Config::IniFiles versions before 3.001000 for Perl allow OS command injection and file overwrite via a 2-arg open() of the -file argument in _make_filehandle. Config::IniFiles::_make_filehandle opens a filename argument with Perl's 2-arg open(), so a filename that begins or ends with a pipe (\"| cmd\", \"cmd |\") or begins with a redirect (\"\u003e path\", \"\u003e\u003e path\") is run as a command or redirect rather than opened as a file. The helper is the open path behind the documented -file argument: new(-file =\u003e $thing) reaches it through ReadConfig. An in-memory scalar reference (-file =\u003e \\$text) does not open a path and is unaffected. Any caller that forwards untrusted input to the -file argument can run an arbitrary command or truncate a file under the process UID.","modified":"2026-06-17T20:15:27.789302556Z","published":"2026-06-15T00:00:00Z","related":["USN-8445-1"],"upstream":["CVE-2026-11527"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-11527"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-11527"},{"type":"REPORT","url":"https://lists.security.metacpan.org/cve-announce/msg/41004660/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8445-1"}],"affected":[{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.88-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.88-1","binary_name":"libconfig-inifiles-perl"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}},{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.94-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libconfig-inifiles-perl","binary_version":"2.94-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}},{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.000001-1","3.000002-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libconfig-inifiles-perl","binary_version":"3.000002-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}},{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.000003-1ubuntu0.1"}]}],"versions":["3.000003-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libconfig-inifiles-perl","binary_version":"3.000003-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}},{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.000003-2ubuntu0.1"}]}],"versions":["3.000003-2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libconfig-inifiles-perl","binary_version":"3.000003-2ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}},{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.000003-3ubuntu0.1"}]}],"versions":["3.000003-3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libconfig-inifiles-perl","binary_version":"3.000003-3ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}},{"package":{"name":"libconfig-inifiles-perl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libconfig-inifiles-perl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.000003-4ubuntu0.1"}]}],"versions":["3.000003-3","3.000003-4","3.000003-4build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libconfig-inifiles-perl","binary_version":"3.000003-4ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-11527.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}