Semantic MediaWiki 3.0.0 before 7.4.1 contains an uncontrolled recursion vulnerability in the ElasticStore ConceptDescriptionInterpreter that only detects directly self-referencing concepts. Users with page-edit rights can create mutually referencing concept pages, causing concept page views, Special:Ask, or api.php action=ask queries to exhaust PHP memory or stack.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-674"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126562.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "3.0.0"
},
{
"fixed": "7.4.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "35d8f8c9c7b48a476751ca0b795b78b648756828"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "7.4.1",
"range": [
{
"fixed": "bcc3cbf4884f0474232a68d3eff060f93a506379"
}
],
"source": "REFERENCES_TAG"
}
]
}