CVE-2026-103441

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.

  • Published Sep 30, 2026
  • CVSS 7.2 high
  • 0.3% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-103441 at the National Vulnerability Database