{"id":"CVE-2026-34095","aliases":["DEBIAN-CVE-2026-34095","EUVD-2026-29109","GHSA-596g-9fv7-mq62","UBUNTU-CVE-2026-34095"],"status":"published","title":"action=raw with Special:Mypage subpage title responds with \"Content-Type: text/html\" on ctype=text/javascript request","description":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","severity":{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00183,"percentile":0.07918,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-668"],"published":"2026-05-11T16:53:25Z","modified":"2026-10-28T02:30:39Z","fixes":[{"ecosystem":"Debian:12","package":"mediawiki","fixed_in":["1:1.39.17-1+deb12u2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mediawiki","fixed_in":["1:1.43.8+dfsg-1~deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mediawiki","fixed_in":["1:1.43.8+dfsg-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.39.17-1+deb12u2"}]}],"versions":["1:1.39.10-1","1:1.39.10-1~deb12u1","1:1.39.12-1~deb12u1","1:1.39.13-1~deb12u1","1:1.39.17-1~deb12u1","1:1.39.2-1","1:1.39.4-1","1:1.39.4-1~deb12u1","1:1.39.4-2","1:1.39.5-1","1:1.39.5-1~deb12u1","1:1.39.6-1","1:1.39.7-1","1:1.39.7-1~deb12u1","1:1.39.8-1"]},{"source":"osv","ecosystem":"Debian:13","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.43.8+dfsg-1~deb13u1"}]}],"versions":["1:1.43.3+dfsg-1","1:1.43.5+dfsg-1","1:1.43.6+dfsg-1","1:1.43.6+dfsg-1~deb13u1","1:1.43.6+dfsg-2"]},{"source":"osv","ecosystem":"Debian:14","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.43.8+dfsg-2"}]}],"versions":["1:1.43.3+dfsg-1","1:1.43.5+dfsg-1","1:1.43.6+dfsg-1","1:1.43.6+dfsg-1~deb13u1","1:1.43.6+dfsg-2","1:1.43.8+dfsg-1","1:1.43.8+dfsg-1~deb13u1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.27.3-1","1:1.27.4-1","1:1.27.4-2","1:1.27.4-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.31.2-1ubuntu1","1:1.31.5-1","1:1.31.5-1ubuntu1","1:1.31.5-2","1:1.31.5-3","1:1.31.5-3ubuntu1","1:1.31.6-1","1:1.31.7-1","1:1.31.7-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.35.3-1","1:1.35.4-1","1:1.35.5-1","1:1.35.5-1ubuntu1","1:1.35.5-1ubuntu2","1:1.35.5-1ubuntu3","1:1.35.6-1","1:1.35.6-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.39.4-2","1:1.39.5-1","1:1.39.6-1","1:1.39.7-1","1:1.39.7-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.1+dfsg-1","1:1.43.1+dfsg-2","1:1.43.3+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.8+dfsg-2","1:1.43.9+dfsg-1","1:1.43.9+dfsg-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.43.3+dfsg-1","1:1.43.5+dfsg-1","1:1.43.6+dfsg-2","1:1.43.8+dfsg-1","1:1.43.8+dfsg-2"]}],"products":[{"vendor":"mediawiki","product":"mediawiki"},{"vendor":"wikimedia foundation","product":"mediawiki"}],"references":[{"url":"https://phabricator.wikimedia.org/T419192","tags":["Issue Tracking","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34095"},{"url":"https://github.com/advisories/GHSA-596g-9fv7-mq62"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-34095","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-34095","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34095","tags":["report"]},{"url":"http://phabricator.wikimedia.org/T419192","tags":["report"]},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1265669","tags":["report"]},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/core/+/1265642","tags":["report"]},{"url":"https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/DIBLSBHISKX6NFRUFNOGZRVW42E7R2QP/","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-34095","title":"action=raw with Special:Mypage subpage title responds with \"Content-Type: text/html\" on ctype=text/javascript request","description":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T16:53:25.421Z","modified":"2026-05-11T18:04:03.036Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none","assessor":"cna"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:20:13.962274Z"}],"euvd":[{"id":"EUVD-2026-29109","description":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T16:53:25Z","modified":"2026-05-11T18:04:03Z","updated_at":"2026-11-02T19:05:10.736891Z"}],"ghsa":[{"id":"GHSA-596g-9fv7-mq62","title":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program...","description":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T18:31:45Z","modified":"2026-05-14T00:32:58Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"none"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T15:08:08.28199Z"}],"nvd":[{"id":"CVE-2026-34095","description":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T18:16:32.223Z","modified":"2026-10-26T18:10:00.173Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"none","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-668"],"updated_at":"2026-11-02T14:12:18.239974Z"}],"osv":[{"id":"CVE-2026-34095","description":"Vulnerability in Wikimedia Foundation MediaWiki.\n\n This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.\n\n\n\nThis issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T18:16:32.223Z","modified":"2026-10-28T02:30:39.887514741Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:02.247031Z"},{"id":"DEBIAN-CVE-2026-34095","description":"Vulnerability in Wikimedia Foundation MediaWiki.   This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php.    This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T18:16:32.223Z","modified":"2026-10-27T09:47:44.124858144Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:54.587575Z"},{"id":"UBUNTU-CVE-2026-34095","description":"Vulnerability in Wikimedia Foundation MediaWiki.  This vulnerability is associated with program files includes/Actions/ActionEntryPoint.Php, includes/Request/FauxResponse.Php. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.","status":"published","published":"2026-05-11T18:16:00Z","modified":"2026-10-17T13:00:01.261321414Z","cvss":[{"version":"4.0","score":0,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N","level":"none"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:16.036833Z"}]}}