CVE-2026-21789

{"id": "CVE-2026-21789", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "psirt@hcl.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.6, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.1}]}, "published": "2026-05-18T20:16:37.607", "references": [{"url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129719", "source": "psirt@hcl.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "psirt@hcl.com", "description": [{"lang": "en", "value": "CWE-863"}]}], "descriptions": [{"lang": "en", "value": "HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios."}], "lastModified": "2026-05-18T20:23:31.147", "sourceIdentifier": "psirt@hcl.com"}