CVE Catalog

CVE-2026-0668

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.48%

41th percentile - higher than 41% of all known CVEs

Summary

The VisualData extension for MediaWiki version 1.45 is vulnerable to inefficient regular expression complexity (ReDoS), allowing exponential blowup. This may lead to resource exhaustion and denial of service.

Risk Assessment

An attacker could supply crafted input, causing exponential CPU consumption and MediaWiki service unavailability. This may disrupt website operations.

Recommendation

Update the VisualData extension to a patched version or restrict access to ReDoS-prone features. Monitor resource usage and unusual requests.

Related vulnerabilities

Original NVD description (English source)

Inefficient Regular Expression Complexity vulnerability in Wikimedia Foundation MediaWiki - VisualData Extension allows Regular Expression Exponential Blowup.This issue affects MediaWiki - VisualData Extension: 1.45.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS