{"id":"UBUNTU-CVE-2023-26112","details":"All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)\\((.*)\\). **Note:** This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.","modified":"2026-02-04T03:21:33.729967Z","published":"2023-04-03T05:15:00Z","related":["USN-7040-1","USN-7040-2"],"upstream":["CVE-2023-26112"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-26112"},{"type":"REPORT","url":"https://security.snyk.io/vuln/SNYK-PYTHON-CONFIGOBJ-3252494"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-26112"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7040-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7040-2"}],"affected":[{"package":{"name":"configobj","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/configobj@4.7.2+ds-5ubuntu0.1~esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.2+ds-5ubuntu0.1~esm1"}]}],"versions":["4.7.2+ds-5","4.7.2+ds-5build1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"python-configobj","binary_version":"4.7.2+ds-5ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26112.json"}},{"package":{"name":"configobj","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/configobj@5.0.6-2ubuntu0.16.04.1~esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.6-2ubuntu0.16.04.1~esm1"}]}],"versions":["5.0.6-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"python-configobj","binary_version":"5.0.6-2ubuntu0.16.04.1~esm1"},{"binary_name":"python3-configobj","binary_version":"5.0.6-2ubuntu0.16.04.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26112.json"}},{"package":{"name":"configobj","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/configobj@5.0.6-2ubuntu0.18.04.1~esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.6-2ubuntu0.18.04.1~esm1"}]}],"versions":["5.0.6-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"python-configobj","binary_version":"5.0.6-2ubuntu0.18.04.1~esm1"},{"binary_name":"python3-configobj","binary_version":"5.0.6-2ubuntu0.18.04.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26112.json"}},{"package":{"name":"configobj","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/configobj@5.0.6-4ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.6-4ubuntu0.1"}]}],"versions":["5.0.6-3","5.0.6-3build1","5.0.6-4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-configobj","binary_version":"5.0.6-4ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26112.json"}},{"package":{"name":"configobj","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/configobj@5.0.6-5ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.6-5ubuntu0.1"}]}],"versions":["5.0.6-4","5.0.6-5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-configobj","binary_version":"5.0.6-5ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-26112.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"low"}]}