{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-21997", "assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85", "state": "PUBLISHED", "assignerShortName": "oracle", "dateReserved": "2026-01-05T18:07:34.723Z", "datePublished": "2026-04-21T20:34:58.883Z", "dateUpdated": "2026-04-21T20:34:58.883Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "43595867-4340-4103-b7a2-9a5208d29a85", "shortName": "oracle", "dateUpdated": "2026-04-21T20:34:58.883Z"}, "problemTypes": [{"descriptions": [{"lang": "en-US", "description": "Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Life Sciences Empirica Signal. While the vulnerability is in Oracle Life Sciences Empirica Signal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Life Sciences Empirica Signal accessible data as well as unauthorized read access to a subset of Oracle Life Sciences Empirica Signal accessible data."}]}], "affected": [{"vendor": "Oracle Corporation", "product": "Oracle Life Sciences Empirica Signal", "versions": [{"version": "9.2.1", "status": "affected", "lessThanOrEqual": "9.2.3", "versionType": "custom"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:oracle:life_sciences_empirica_signal:*:*:*:*:*:*:*:*", "versionStartIncluding": "9.2.1", "versionEndIncluding": "9.2.3"}]}]}], "descriptions": [{"lang": "en-US", "value": "Vulnerability in the Oracle Life Sciences Empirica Signal product of Oracle Life Science Applications (component: Common Core). Supported versions that are affected are 9.2.1-9.2.3. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Life Sciences Empirica Signal. While the vulnerability is in Oracle Life Sciences Empirica Signal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Life Sciences Empirica Signal accessible data as well as unauthorized read access to a subset of Oracle Life Sciences Empirica Signal accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N)."}], "references": [{"url": "https://www.oracle.com/security-alerts/cpuapr2026.html", "name": "Oracle Advisory", "tags": ["vendor-advisory"]}], "metrics": [{"cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N", "baseScore": 8.5, "baseSeverity": "HIGH"}}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the Oracle Life Sciences Empirica Signal product of Oracle Life Science Applications (component: Common Core). Supported versions that are affected are 9.2.1-9.2.3. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Life Sciences Empirica Signal. While the vulnerability is in Oracle Life Sciences Empirica Signal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Life Sciences Empirica Signal accessible data as well as unauthorized read access to a subset of Oracle Life Sciences Empirica Signal accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N)."}], "id": "CVE-2026-21997", "lastModified": "2026-04-21T21:16:24.653", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 4.7, "source": "secalert_us@oracle.com", "type": "Primary"}]}, "published": "2026-04-21T21:16:24.653", "references": [{"source": "secalert_us@oracle.com", "url": "https://www.oracle.com/security-alerts/cpuapr2026.html"}], "sourceIdentifier": "secalert_us@oracle.com", "vulnStatus": "Received"}

{}

{"analysis": {"en": {"generated_at": "2026-04-22T05:22:22.269496+00:00", "value": {"mitigation_remediation": ["Apply the latest Oracle patch or upgrade to a version of Empirica Signal that contains the local vulnerability fix.", "Restrict external HTTP access to the Empirica Signal instance using firewalls or VPNs so that only trusted hosts can reach the service.", "Enforce strict role\u2011based access controls and monitor logs for anomalous data creation, deletion, or modification activities."], "summary": {"action": "Patch Now", "impact": "Unauthorized data modification and access"}, "threat_synthesis": {"affected_systems": "Oracle Life Sciences Empirica Signal versions 9.2.1, 9.2.2 and 9.2.3 are affected. The vulnerability has been identified in the Oracle Life Science Applications suite and is specifically tied to the Common Core component within these releases.", "description_and_impact": "A vulnerability in the Common Core component of Oracle Life Sciences Empirica Signal allows an attacker with low privilege to perform unauthorized creation, deletion or modification of critical data, as well as read access to a subset of data. The flaw results in a confidentiality impact that is low and an integrity impact that is high. Because the vulnerability can result in a change of scope, the damage may extend beyond the affected application to other Oracle Life Sciences products.", "risk_and_exploitability": "The CVSS score of 8.5 indicates a high severity level. The attack vector is inferred to be remote over HTTP, and the requirement of low privilege suggests that any network host with HTTP access to the system could potentially exploit the issue without additional authentication. Because the EPSS score is not available, the likelihood of exploitation cannot be quantified, and the vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities catalog. The high integrity impact and potential scope change warrant serious concern, especially in environments where unrestricted network traffic can reach the application."}}}}, "created": "2026-04-22T05:30:09.554472+00:00", "title": "Remote Unauthorized Data Modification and Read in Oracle Life Sciences Empirica Signal via Low-Privilege HTTP Access", "updated": "2026-04-22T05:30:09.554484+00:00", "vendors": [], "weaknesses": ["CWE-284"]}