{"cve":"CVE-2023-26112","nvd":{"published":"2023-04-03T05:15:07.753","modified":"2026-06-17T05:42:42.190","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9},"cwes":["CWE-1333"],"references":["https://github.com/DiffSK/configobj/issues/232","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZHY7B33EFY4LESP2NI4APQUPRROTAZK/","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK/","https://security.snyk.io/vuln/SNYK-PYTHON-CONFIGOBJ-3252494"],"products":["configobj_project:configobj"],"source":"nvd","synced_at":"2026-10-19T21:37:48.383111019+00:00"},"epss":{"cve":"CVE-2023-26112","score":0.01269,"percentile":0.69801,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-c33w-24p9-8m24","url":"https://osv.dev/vulnerability/GHSA-c33w-24p9-8m24","summary":"configobj ReDoS exploitable by developer using values in a server-side configuration file","modified":"2026-09-10T03:49:53.765738860Z","packages":[{"ecosystem":"PyPI","name":"configobj","purl":"pkg:pypi/configobj","ranges":["<5.0.9"],"fixed":["5.0.9"]}]},{"id":"PYSEC-2026-1270","url":"https://osv.dev/vulnerability/PYSEC-2026-1270","summary":"configobj ReDoS exploitable by developer using values in a server-side configuration file","modified":"2026-07-07T17:47:12.898028785Z","packages":[{"ecosystem":"PyPI","name":"configobj","purl":"pkg:pypi/configobj","ranges":["<5.0.9"],"fixed":["5.0.9"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}