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{"affected": [{"affectedData": [{"product": "Oracle Java SE", "vendor": "Oracle Corporation", "versions": [{"status": "affected", "version": "8u503"}, {"status": "affected", "version": "8u503-perf"}, {"status": "affected", "version": "11.0.32.1"}, {"status": "affected", "version": "17.0.20.1"}, {"status": "affected", "version": "21.0.12.1"}, {"status": "affected", "version": "25.0.4.1"}, {"status": "affected", "version": "27"}]}, {"product": "Oracle GraalVM for JDK", "vendor": "Oracle Corporation", "versions": [{"status": "affected", "version": "17.0.20.1"}, {"status": "affected", "version": "21.0.12.1"}]}, {"product": "Oracle GraalVM Enterprise Edition", "vendor": "Oracle Corporation", "versions": [{"status": "affected", "version": "21.3.19.1.1"}]}], "source": "secalert_us@oracle.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Lightweight HTTP Server). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)."}], "id": "CVE-2026-91453", "lastModified": "2026-10-22T19:18:05.473", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "secalert_us@oracle.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-91453", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-22T18:47:38.740578Z", "version": "2.0.3"}}]}, "published": "2026-10-20T22:20:49.083", "references": [{"source": "secalert_us@oracle.com", "url": "https://www.oracle.com/security-alerts/cpuoct2026.html"}], "sourceIdentifier": "secalert_us@oracle.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "openjdk: Improve HTTP headers (Oracle CPU 2026-10)", "id": "2557047", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2557047"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-444", "details": ["Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Lightweight HTTP Server). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).", "A flaw was found in OpenJDK's Lightweight HTTP Server. An unauthenticated remote attacker can exploit this vulnerability over the network by sending crafted requests to exposed server Application Programming Interfaces (APIs). Successful exploitation allows an attacker to perform unauthorized data modifications, potentially inserting, altering, or deleting accessible application data."], "name": "CVE-2026-91453", "package_state": [{"cpe": "cpe:/a:redhat:openjdk_els:11", "fix_state": "Affected", "package_name": "java-11-openjdk", "product_name": "Red Hat build of OpenJDK 11 ELS"}, {"cpe": "cpe:/a:redhat:openjdk_els:11", "fix_state": "Affected", "package_name": "java-11-openjdk-portable", "product_name": "Red Hat build of OpenJDK 11 ELS"}, {"cpe": "cpe:/a:redhat:openjdk_els:11", "fix_state": "Affected", "package_name": "java-11-openjdk-windows", "product_name": "Red Hat build of OpenJDK 11 ELS"}, {"cpe": "cpe:/a:redhat:openjdk:17", "fix_state": "Affected", "package_name": "java-17-openjdk-portable", "product_name": "Red Hat build of OpenJDK 17"}, {"cpe": "cpe:/a:redhat:openjdk:17", "fix_state": "Affected", "package_name": "java-17-openjdk-windows", "product_name": "Red Hat build of OpenJDK 17"}, {"cpe": 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{"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "java-17-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "java-1.8.0-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "java-21-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "java-25-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "java-17-openjdk-portable", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "java-21-openjdk", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "java-21-openjdk-portable", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "java-25-openjdk", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "java-25-openjdk-portable", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-20T21:26:03Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-91453\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-91453\nhttps://www.oracle.com/security-alerts/cpuoct2026.html"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "21.3.19.1.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Oracle GraalVM Enterprise Edition", "source": "cna", "vendor": "Oracle Corporation"}, "product": "graalvm", "vendor": "oracle"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.0.20.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "21.0.12.1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Oracle GraalVM for JDK", "source": "cna", "vendor": "Oracle Corporation"}, "product": "graalvm_for_jdk", "vendor": "oracle"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "8u503"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "8u503-perf"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "11.0.32.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.0.20.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "21.0.12.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "25.0.4.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "27"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Oracle Java SE", "source": "cna", "vendor": "Oracle Corporation"}, "product": "java_se", "vendor": "oracle"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "8u503"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "8u503-perf"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "11.0.32.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.0.20.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "21.0.12.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "25.0.4.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "27"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Oracle Java SE", "source": "cna", "vendor": "Oracle Corporation"}, "product": "oracle_java_se", "vendor": "oracle"}], "created": "2026-10-21T13:30:14.560770+00:00", "updated": "2026-10-22T17:15:07.986797+00:00", "vendors": ["oracle", "oracle$PRODUCT$graalvm", "oracle$PRODUCT$graalvm_for_jdk", "oracle$PRODUCT$java_se", "oracle$PRODUCT$oracle_java_se"]}