{"id":"CVE-2023-26112","aliases":["GHSA-c33w-24p9-8m24","PYSEC-2026-1270"],"title":"configobj ReDoS exploitable by developer using values in a server-side configuration file","summary":"configobj ReDoS exploitable by developer using values in a server-side configuration file","severity":"low","cvss":3.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","vendor":"configobj","product":"configobj","ecosystem":"pip","affected":["configobj < 5.0.9"],"patched":["configobj 5.0.9"],"published":"2023-04-03","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:49:53.765738860Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-c33w-24p9-8m24","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26112"},{"url":"https://github.com/DiffSK/configobj/issues/232"},{"url":"https://github.com/DiffSK/configobj/commit/7c618b0bbaff6ecaca51a6f05b29795d1377a4a5"},{"url":"https://github.com/DiffSK/configobj"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BO4RLMYEJODCNUE3DJIIUUFVTPAG6VN"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NZHY7B33EFY4LESP2NI4APQUPRROTAZK"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYU4IHVLOTYMFPH7KDOJGKZQR4GKWPFK"},{"url":"https://pypi.org/project/configobj/5.0.9"},{"url":"https://security.snyk.io/vuln/SNYK-PYTHON-CONFIGOBJ-3252494"}],"tags":["osv","pip"],"epss":0.01269,"epssPercentile":0.68509,"ingestedAt":"2026-07-08T18:25:48.129Z","slug":"CVE-2023-26112","body":"## Overview\n\nAll 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.\n\n## Affected packages\n\n- `configobj < 5.0.9`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `configobj 5.0.9`","depth":"sunlit","depthScore":21,"depthScoreParts":{"impact":20.4,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}