{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40988", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-04-16T02:19:09.389Z", "datePublished": "2026-06-09T23:46:15.589Z", "dateUpdated": "2026-06-10T18:08:45.288Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-06-09T23:46:15.589Z"}, "title": "Unbounded DEFLATE Inflation in SAML 2.0 Service Provider", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}], "impacts": [{"descriptions": [{"lang": "en", "value": "An unauthenticated remote attacker can cause denial of service by sending a crafted SAML REDIRECT binding request that inflates an unbounded compressed payload into memory."}]}], "affected": [{"vendor": "Spring", "product": "Spring Security", "defaultStatus": "unaffected", "versions": [{"status": "affected", "version": "5.7.0", "lessThan": "5.7.24", "versionType": "custom"}, {"status": "affected", "version": "5.8.0", "lessThan": "5.8.26", "versionType": "custom"}, {"status": "affected", "version": "6.3.0", "lessThan": "6.3.17", "versionType": "custom"}, {"status": "affected", "version": "6.4.0", "lessThan": "6.4.17", "versionType": "custom"}, {"status": "affected", "version": "6.5.0", "lessThan": "6.5.11", "versionType": "custom"}, {"status": "affected", "version": "7.0.0", "lessThan": "7.0.6", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5."}]}], "references": [{"url": "https://spring.io/security/cve-2026-40988"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.1"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-10T18:08:29.853478Z", "id": "CVE-2026-40988", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-10T18:08:45.288Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-40988", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-10T18:08:29.853478Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-10T18:08:34.655Z"}}], "cna": {"title": "Unbounded DEFLATE Inflation in SAML 2.0 Service Provider", "source": {"discovery": "UNKNOWN"}, "impacts": [{"descriptions": [{"lang": "en", "value": "An unauthenticated remote attacker can cause denial of service by sending a crafted SAML REDIRECT binding request that inflates an unbounded compressed payload into memory."}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Spring", "product": "Spring Security", "versions": [{"status": "affected", "version": "5.7.0", "lessThan": "5.7.24", "versionType": "custom"}, {"status": "affected", "version": "5.8.0", "lessThan": "5.8.26", "versionType": "custom"}, {"status": "affected", "version": "6.3.0", "lessThan": "6.3.17", "versionType": "custom"}, {"status": "affected", "version": "6.4.0", "lessThan": "6.4.17", "versionType": "custom"}, {"status": "affected", "version": "6.5.0", "lessThan": "6.5.11", "versionType": "custom"}, {"status": "affected", "version": "7.0.0", "lessThan": "7.0.6", "versionType": "custom"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://spring.io/security/cve-2026-40988"}], "x_generator": {"engine": "Vulnogram 1.0.1"}, "descriptions": [{"lang": "en", "value": "An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.", "supportingMedia": [{"type": "text/html", "value": "An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption"}]}], "providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-06-09T23:46:15.589Z"}}}, "cveMetadata": {"cveId": "CVE-2026-40988", "state": "PUBLISHED", "dateUpdated": "2026-06-10T18:08:45.288Z", "dateReserved": "2026-04-16T02:19:09.389Z", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "datePublished": "2026-06-09T23:46:15.589Z", "assignerShortName": "vmware"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB5C2BB6-3DED-4AFA-B2F7-5D0D68F04E1F", "versionEndExcluding": "5.7.24", "versionStartIncluding": "5.7.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*", "matchCriteriaId": "55C5A1C3-2071-41EE-A218-B36A531072AC", "versionEndExcluding": "5.8.26", "versionStartIncluding": "5.8.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*", "matchCriteriaId": "A4B7CBD7-3497-4BBB-88EF-B88F9F4C4409", "versionEndExcluding": "6.3.17", "versionStartIncluding": "6.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4CF2BF5-E039-4C56-B68E-E98CC82327CE", "versionEndExcluding": "6.4.17", "versionStartIncluding": "6.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*", "matchCriteriaId": "4422C1C4-B1DE-480F-A221-78F3C3F2FC2A", "versionEndExcluding": "6.5.11", "versionStartIncluding": "6.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:vmware:spring_security:*:*:*:*:*:*:*:*", "matchCriteriaId": "701AFD21-686E-4C33-8E42-0B6E9015920A", "versionEndExcluding": "7.0.6", "versionStartIncluding": "7.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An application using spring-security-saml2-service-provider and the REDIRECT binding for SAML 2.0 Login or Logout may be vulnerable to a denial of service by way of an unbounded writer that inflates the compressed SAML payload into memory.\n\nAffected versions:\nSpring Security 5.7.0 through 5.7.23; 5.8.0 through 5.8.25; 6.3.0 through 6.3.16; 6.4.0 through 6.4.16; 6.5.0 through 6.5.10; 7.0.0 through 7.0.5."}], "id": "CVE-2026-40988", "lastModified": "2026-06-12T20:38:02.607", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@vmware.com", "type": "Secondary"}]}, "published": "2026-06-10T00:16:49.527", "references": [{"source": "security@vmware.com", "tags": ["Vendor Advisory"], "url": "https://spring.io/security/cve-2026-40988"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security@vmware.com", "type": "Secondary"}]}

{}