CVE-2026-34089 PUBLISHED

Memory leak in Scribunto causes runJobs.php to run out of memory

Assigner: wikimedia-foundation
Reserved: 25.03.2026 Published: 11.05.2026 Updated: 11.05.2026

Vulnerability in Wikimedia Foundation Scribunto.

This issue affects Scribunto: from 1.45.0 before 1.45.2.

CVSS 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
CVSS Score: 2.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	Wikimedia Foundation
Product	Scribunto
Versions	Default: unaffected affected from 1.45.0 to 1.45.2 (excl.)