{"id":"CVE-2026-34089","aliases":["EUVD-2026-29061","GHSA-mcf6-vhp9-g7jr","UBUNTU-CVE-2026-34089"],"status":"published","title":"Memory leak in Scribunto causes runJobs.php to run out of memory","description":"Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0 before 1.45.2.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00347,"percentile":0.28509,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-401","CWE-79"],"published":"2026-05-11T14:46:31Z","modified":"2026-10-26T00:10:00Z","affected":[{"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":"wikimedia","product":"scribunto"},{"vendor":"wikimedia foundation","product":"scribunto"}],"references":[{"url":"https://phabricator.wikimedia.org/T419168","tags":["Exploit","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34089"},{"url":"https://github.com/advisories/GHSA-mcf6-vhp9-g7jr"},{"url":"https://ubuntu.com/security/CVE-2026-34089","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-34089","tags":["report"]},{"url":"https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Scribunto/+/1265609","tags":["report"]},{"url":"https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/DIBLSBHISKX6NFRUFNOGZRVW42E7R2QP/","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-34089","title":"Memory leak in Scribunto causes runJobs.php to run out of memory","description":"Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0 before 1.45.2.","status":"published","published":"2026-05-11T14:46:31.826Z","modified":"2026-05-11T15:53:12.489Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:20:14.665567Z"}],"euvd":[{"id":"EUVD-2026-29061","description":"Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0 before 1.45.2.","status":"published","published":"2026-05-11T14:46:31Z","modified":"2026-05-11T15:53:12Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"low"}],"updated_at":"2026-11-02T19:05:10.736891Z"}],"ghsa":[{"id":"GHSA-mcf6-vhp9-g7jr","title":"Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0...","description":"Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0 before 1.45.2.","status":"published","published":"2026-05-11T18:31:43Z","modified":"2026-08-11T15:31:31Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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":"low"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-79","CWE-401"],"updated_at":"2026-11-02T15:10:17.025827Z"}],"nvd":[{"id":"CVE-2026-34089","description":"Vulnerability in Wikimedia Foundation Scribunto.\n\nThis issue affects Scribunto: from 1.45.0 before 1.45.2.","status":"published","published":"2026-05-11T16:17:30.293Z","modified":"2026-10-26T00:10:00.15Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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":"low","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-401","CWE-79"],"updated_at":"2026-11-02T14:12:18.239974Z"}],"osv":[{"id":"UBUNTU-CVE-2026-34089","description":"Vulnerability in Wikimedia Foundation Scribunto. This issue affects Scribunto: from 1.45.0 before 1.45.2.","status":"published","published":"2026-05-11T16:17:00Z","modified":"2026-10-17T13:00:01.254633193Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"low"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:16.036833Z"}]}}