{"id":"CVE-2026-103441","title":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","summary":"Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.","severity":"high","cvss":7.2,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:I/V:C/RE:M/U:Red","cwe":["CWE-502"],"vendor":"The Wikimedia Foundation","product":"MediaWiki Wikibase extension","affected":["mediawiki_wikibase_extension 1.46","mediawiki_wikibase_extension 1.45","mediawiki_wikibase_extension 1.43"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T16:27:40.143","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103441","references":[{"url":"https://gerrit.wikimedia.org/r/q/Id35bf747e48370e474d9b9444bd7520b24836e8d","label":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"},{"url":"https://phabricator.wikimedia.org/T435210","label":"c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"}],"tags":["nvd","cve.org","exploit-available"],"cvssSource":"cna","ingestedAt":"2026-09-30T17:13:20.822Z","epss":0.00282,"epssPercentile":0.20597,"exploits":{"github":1,"githubRepos":["https://github.com/BomboBombone/CVE-2026-103441"],"checkedAt":"2026-10-27T16:53:49.717Z"},"exploitAvailable":true,"slug":"CVE-2026-103441","body":"## Overview\n\nDeserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files.\n\nThis issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":214538,"id":"CVE-2026-103441","ts":1790874156931,"field":"exploit_available","old":"false","new":"true"}]}