CVE-2026-45447

{"id": "CVE-2026-45447", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45447", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-10T03:59:38.212378Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.2}]}, "affected": [{"source": "openssl-security@openssl.org", "affectedData": [{"vendor": "OpenSSL", "product": "OpenSSL", "versions": [{"status": "affected", "version": "4.0.0", "lessThan": "4.0.1", "versionType": "semver"}, {"status": "affected", "version": "3.6.0", "lessThan": "3.6.3", "versionType": "semver"}, {"status": "affected", "version": "3.5.0", "lessThan": "3.5.7", "versionType": "semver"}, {"status": "affected", "version": "3.4.0", "lessThan": "3.4.6", "versionType": "semver"}, {"status": "affected", "version": "3.0.0", "lessThan": "3.0.21", "versionType": "semver"}, {"status": "affected", "version": "1.1.1", "lessThan": "1.1.1zh", "versionType": "custom"}, {"status": "affected", "version": "1.0.2", "lessThan": "1.0.2zq", "versionType": "custom"}], "defaultStatus": "unaffected"}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/o:redhat:enterprise_linux:10.2"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "versions": [{"status": "unaffected", "version": "1:3.5.5-4.el10_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "openssl", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "1:1.0.2o-4.el8_10.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "compat-openssl10", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", 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"version": "1:1.1.1k-5.el9_6.3", "lessThan": "*", "versionType": "rpm"}], "packageName": "compat-openssl11", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:cost_management:4::el9"], "vendor": "Red Hat", "product": "Cost Management Metrics Operator 4", "versions": [{"status": "unaffected", "version": "1783539156", "lessThan": "*", "versionType": "rpm"}], "packageName": "costmanagement/costmanagement-metrics-rhel9-operator", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:discovery:2::el9"], "vendor": "Red Hat", "product": "Red Hat Discovery 2", "versions": [{"status": "unaffected", "version": "1782159791", "lessThan": "*", "versionType": "rpm"}], "packageName": "discovery/discovery-server-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": 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"packageName": "rhui5/rhua-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:multicluster_engine"], "vendor": "Red Hat", "product": "Multicluster Engine for Kubernetes", "packageName": "multicluster-engine/console-mce-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/a:redhat:multicluster_engine"], "vendor": "Red Hat", "product": "Multicluster Engine for Kubernetes", "packageName": "multicluster-engine/hive-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/a:redhat:multicluster_engine"], "vendor": "Red Hat", "product": "Multicluster Engine for Kubernetes", "packageName": "multicluster-engine/hypershift-rhel9-operator", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/a:redhat:acm:2"], "vendor": "Red Hat", "product": "Red Hat Advanced Cluster Management for Kubernetes 2", "packageName": "rhacm2/console-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unknown"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "edk2", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "shim-unsigned-aarch64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:10"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10", "packageName": "shim-unsigned-x64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "openssl", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "openssl", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "ovmf", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "shim-signed", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "edk2", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "mingw-openssl", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "packageName": "shim-unsigned-x64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "packageName": "edk2", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "packageName": "shim-unsigned-aarch64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "packageName": "shim-unsigned-x64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:openshift:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Container Platform 4", "packageName": "rhcos", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-06-09T17:17:19.277", "references": [{"url": "https://github.com/openssl/openssl/commit/3aad5eb7af4de4ee0633c30a8541a54d9bbde63c", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/7d4a980c62258c5910cc883936e0c8dbab4d75a8", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/9dfd688ad2290fc5075cacbc9bf0c9a93eefed54", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/a541ae8bfe849a30cc885e8780715c0f488e496c", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://github.com/openssl/openssl/commit/c505d7559da5d5f9f2c3913c6883a5562ce7273e", "tags": ["Patch"], "source": "openssl-security@openssl.org"}, {"url": "https://openssl-library.org/news/secadv/20260609.txt", "tags": ["Vendor Advisory"], "source": "openssl-security@openssl.org"}, {"url": "https://access.redhat.com/errata/RHSA-2026:25237", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:25239", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26275", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:26319", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:29197", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:34102", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:35869", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:36215", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:36217", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:39009", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:39012", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:39981", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:44438", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-45447", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481898", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45447.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "openssl-security@openssl.org", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-825"}]}], "descriptions": [{"lang": "en", "value": "Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\ntrigger a use-after-free during PKCS#7 signature verification.\n\nImpact summary: A use-after-free may result in process crashes, heap\ncorruption, or potentially remote code execution.\n\nWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\ndigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\nincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\nuse of the BIO by the calling application results in a use-after-free\ncondition.\n\nIn the common case this occurs when the application later calls\nBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\non allocator behavior and application-specific BIO usage patterns, this\nmay result in a crash or other memory corruption. In some application\ncontexts this may potentially be exploitable for remote code execution.\n\nApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\nPKCS#7 APIs may be affected. Applications using the CMS APIs for this\nprocessing are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}, {"lang": "es", "value": "Resumen del problema: Un mensaje firmado PKCS#7 o S/MIME especialmente dise\u00f1ado podr\u00eda desencadenar un uso despu\u00e9s de liberaci\u00f3n durante la verificaci\u00f3n de firma PKCS#7.\n\nResumen del impacto: Un uso despu\u00e9s de liberaci\u00f3n puede resultar en ca\u00eddas de proceso, corrupci\u00f3n de heap o potencialmente ejecuci\u00f3n remota de c\u00f3digo.\n\nAl procesar un mensaje firmado PKCS#7 o S/MIME, si el campo digestAlgorithms de SignedData est\u00e1 presente como un SET ASN.1 vac\u00edo, OpenSSL puede liberar incorrectamente un BIO propiedad del llamador durante PKCS7_verify(). Un uso posterior del BIO por la aplicaci\u00f3n llamadora resulta en una condici\u00f3n de uso despu\u00e9s de liberaci\u00f3n.\n\nEn el caso com\u00fan, esto ocurre cuando la aplicaci\u00f3n llama posteriormente a BIO_free() en el BIO pasado originalmente a PKCS7_verify(). Dependiendo del comportamiento del asignador y de los patrones de uso de BIO espec\u00edficos de la aplicaci\u00f3n, esto puede resultar en una ca\u00edda u otra corrupci\u00f3n de memoria. En algunos contextos de aplicaci\u00f3n, esto podr\u00eda ser potencialmente explotable para ejecuci\u00f3n remota de c\u00f3digo.\n\nLas aplicaciones que procesan mensajes firmados PKCS#7 o S/MIME utilizando las APIs PKCS#7 de OpenSSL pueden verse afectadas. Las aplicaciones que utilizan las APIs CMS para este procesamiento no se ven afectadas.\n\nLos m\u00f3dulos FIPS en 4.0, 3.6, 3.5, 3.4 y 3.0 no se ven afectados por este problema, ya que el c\u00f3digo afectado est\u00e1 fuera del l\u00edmite del m\u00f3dulo FIPS de OpenSSL."}], "lastModified": "2026-07-27T13:18:12.733", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F534B804-67B6-49DA-8A86-0FF21E512908", "versionEndExcluding": "1.0.2zq", "versionStartIncluding": "1.0.2"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "43EFE1E3-4049-4EE6-A2AE-BDBA38E6870F", "versionEndExcluding": "1.1.1zh", "versionStartIncluding": "1.1.1"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EDB88756-EDFE-4886-A267-3F19342A6042", "versionEndExcluding": "3.0.21", "versionStartIncluding": "3.0.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF7E21E7-AEC0-4882-B1F1-2D056B506F22", "versionEndExcluding": "3.4.6", "versionStartIncluding": "3.4.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6B6B9930-C549-4D88-9784-AF32CCDDB87A", "versionEndExcluding": "3.5.7", "versionStartIncluding": "3.5.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D41B3C45-EC73-4DC8-989D-B2E2792E102F", "versionEndExcluding": "3.6.3", "versionStartIncluding": "3.6.0"}, {"criteria": "cpe:2.3:a:openssl:openssl:4.0.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6E881B9A-1A0A-4BC0-8160-20C00561167D"}], "operator": "OR"}]}], "sourceIdentifier": "openssl-security@openssl.org"}