{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40986", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-04-16T02:19:09.389Z", "datePublished": "2026-06-11T05:03:26.458Z", "dateUpdated": "2026-06-11T05:03:26.458Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-06-11T05:03:26.458Z"}, "title": "Spring Web Flow JS RemotingHandler renders non-HTML Response as HTML", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-79", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (Cross-site Scripting)", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "An attacker who can influence error responses from the server can cause Spring Web Flow's JavaScript RemotingHandler to render attacker-controlled content as HTML in the user's browser."}]}], "affected": [{"vendor": "Spring", "product": "Spring Web Flow", "defaultStatus": "unaffected", "versions": [{"status": "affected", "version": "4.0.0", "lessThan": "4.0.1", "versionType": "custom"}, {"status": "affected", "version": "3.0.0", "lessThan": "3.0.2", "versionType": "custom"}, {"status": "affected", "version": "2.5.0", "lessThan": "2.5.2", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even when the response is not \"text/html\", which can result in a scripting attack in the user's browser if the error response from the server contains error details with input reflected from an attacker.\n\nAffected versions:\nSpring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even when the response is not \"text/html\", which can result in a scripting attack in the user's browser if the error response from the server contains error details with input reflected from an attacker.\n\nAffected versions:\nSpring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1."}]}], "references": [{"url": "https://spring.io/security/cve-2026-40986"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Spring Web Flow's JavaScript RemotingHandler renders the body of an error response as HTML even when the response is not \"text/html\", which can result in a scripting attack in the user's browser if the error response from the server contains error details with input reflected from an attacker.\n\nAffected versions:\nSpring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1."}], "id": "CVE-2026-40986", "lastModified": "2026-06-11T07:16:26.920", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.6, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-06-11T07:16:26.920", "references": [{"source": "security@vmware.com", "url": "https://spring.io/security/cve-2026-40986"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security@vmware.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.0.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.0.0,3.0.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.5.0,2.5.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "spring_web_flow", "vendor": "spring"}], "created": "2026-06-11T07:30:08.610363+00:00", "updated": "2026-06-11T10:40:25.848660+00:00", "vendors": ["spring", "spring$PRODUCT$spring_web_flow"]}