{"id":"CVE-2026-0668","aliases":["EUVD-2026-1176","GHSA-6p52-pvr6-5x2c"],"status":"published","title":"VisualData extension: Regular Expression Denial of Service (ReDoS) via crafted user input","description":"Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00478,"percentile":0.41559,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1333"],"published":"2026-01-07T17:36:19Z","modified":"2026-10-26T21:10:00Z","products":[{"vendor":"wikimedia foundation","product":"mediawiki - visualdata extension"},{"vendor":"wikisphere","product":"visualdata"}],"references":[{"url":"https://phabricator.wikimedia.org/T387008","tags":["Exploit","Issue Tracking"]},{"url":"https://gerrit.wikimedia.org/r/q/Ie08d9a8ceb2c9a22a635cfc27964353f14072dbf","tags":["Patch"]},{"url":"https://gerrit.wikimedia.org/r/q/Ifbf9c2ade621226e14fe852f3217293772bf8bb8","tags":["Patch"]},{"url":"https://gerrit.wikimedia.org/r/q/I893a9fca694a2613e29e149dea2d76d7f06063e5","tags":["Patch"]},{"url":"https://gerrit.wikimedia.org/r/q/I4ff2737c9f0ba805267d1fc8296e7cff61241ee3","tags":["Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0668"},{"url":"https://github.com/advisories/GHSA-6p52-pvr6-5x2c"}],"sources":{"cve":[{"id":"CVE-2026-0668","title":"VisualData extension: Regular Expression Denial of Service (ReDoS) via crafted user input","description":"Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.","status":"published","published":"2026-01-07T17:36:19.258Z","modified":"2026-01-07T19:17:41.764Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:20:13.587351Z"}],"euvd":[{"id":"EUVD-2026-1176","description":"Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.","status":"published","published":"2026-01-07T17:36:19Z","modified":"2026-01-07T19:17:41Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T19:48:55.108559Z"}],"ghsa":[{"id":"GHSA-6p52-pvr6-5x2c","title":"Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki -...","description":"Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.","status":"published","published":"2026-01-07T18:30:27Z","modified":"2026-01-07T21:31:56Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:05:32.392087Z"}],"nvd":[{"id":"CVE-2026-0668","description":"Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.","status":"published","published":"2026-01-07T18:15:52.873Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:12:03.683495Z"}]}}