{"id":"CVE-2023-26112","aliases":["GHSA-c33w-24p9-8m24","PYSEC-2026-1270"],"url":"https://o3.security/vulnerability/CVE-2023-26112","summary":"configobj ReDoS exploitable by developer using values in a server-side configuration file","details":"All versions of the package configobj are vulnerable to Regular Expression Denial of Service (ReDoS) via the validate function, using (.+?)\\((.*)\\).\r\r**Note:** This is only exploitable in the case of a developer, putting the offending value in a server side configuration file.","published":"2023-04-03T05:15:07.753Z","modified":"2026-10-05T10:26:49.520098663Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"configobj","fixedVersion":"5.0.9"}],"fix":{"url":"https://github.com/DiffSK/configobj/commit/7c618b0bbaff6ecaca51a6f05b29795d1377a4a5","label":"DiffSK/configobj@7c618b0"},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZHY7B33EFY4LESP2NI4APQUPRROTAZK/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK/"},{"type":"REPORT","url":"https://github.com/DiffSK/configobj/issues/232"},{"type":"EVIDENCE","url":"https://security.snyk.io/vuln/SNYK-PYTHON-CONFIGOBJ-3252494"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26112"},{"type":"WEB","url":"https://github.com/DiffSK/configobj/commit/7c618b0bbaff6ecaca51a6f05b29795d1377a4a5"},{"type":"PACKAGE","url":"https://github.com/DiffSK/configobj"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZHY7B33EFY4LESP2NI4APQUPRROTAZK"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK"},{"type":"WEB","url":"https://pypi.org/project/configobj/5.0.9"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-05T10:26:49.520098663Z"}}