CVE-2026-3336

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["cpe:/a:redhat:openshift_update_service:5"], "defaultStatus": "unaffected", "packageName": "openshift-update-service/openshift-update-service-rhel8", "product": "Red Hat OpenShift Update Service", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:trusted_profile_analyzer:2"], "defaultStatus": "affected", "packageName": "rhtpa/rhtpa-trustification-service-rhel9", "product": "Red Hat Trusted Profile Analyzer", "vendor": "Red Hat"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:amazon:aws-lc-sys:*:*:*:*:*:rust:*:*", "matchCriteriaId": "1657BD7A-BA4B-430A-809F-DE772460B0EA", "versionEndExcluding": "0.38.0", "versionStartIncluding": "0.24.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:amazon:aws_libcrypto:*:*:*:*:*:*:*:*", "matchCriteriaId": "4B6E82AB-2DB6-4350-B218-772CE7852DCC", "versionEndExcluding": "1.69.0", "versionStartIncluding": "1.41.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer.\n\nCustomers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0."}, {"lang": "es", "value": "Validaci\u00f3n incorrecta de certificados en PKCS7_verify() en AWS-LC permite a un usuario no autenticado eludir la verificaci\u00f3n de la cadena de certificados al procesar objetos PKCS7 con m\u00faltiples firmantes, excepto el firmante final.\n\nLos clientes de los servicios de AWS no necesitan tomar ninguna medida. Las aplicaciones que utilizan AWS-LC deber\u00edan actualizarse a la versi\u00f3n 1.69.0 de AWS-LC."}], "id": "CVE-2026-3336", "lastModified": "2026-07-15T02:20:59.523", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3336", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-03T20:05:19.376361Z", "version": "2.0.3"}}]}, "published": "2026-03-02T22:16:31.277", "references": [{"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "tags": ["Vendor Advisory"], "url": "https://aws.amazon.com/security/security-bulletins/2026-005-AWS/"}, {"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "tags": ["Release Notes"], "url": "https://github.com/aws/aws-lc/releases/tag/v1.69.0"}, {"source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "tags": ["Vendor Advisory"], "url": "https://github.com/aws/aws-lc/security/advisories/GHSA-cfwj-9wp5-wqvp"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:5459"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-3336"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2444026"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3336.json"}], "sourceIdentifier": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "ff89ba41-3aa1-4d27-914a-91399e9639e5", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-295"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "aws-lc: aws-lc: Certificate validation bypass via improper handling of PKCS7 objects", "id": "2444026", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2444026"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-295", "details": ["No description is available for this CVE."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-3336", "package_state": [{"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "openshift-sandboxed-containers/osc-monitor-rhel9", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "openshift-sandboxed-containers/osc-operator-bundle", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "openshift-sandboxed-containers/osc-podvm-builder-rhel9", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "openshift-sandboxed-containers/osc-podvm-payload-rhel9", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Affected", "package_name": "openshift-sandboxed-containers/osc-rhel9-operator", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "clevis-pin-trustee", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "trustee", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "virt-firmware-rs", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "clevis-pin-trustee", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "kata-containers", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift_update_service:5", "fix_state": "Affected", "package_name": "openshift-update-service/openshift-update-service-rhel8", "product_name": "Red Hat OpenShift Update Service"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "package_name": "rhtas/tuffer-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "package_name": "rhtas/tuftool-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:trusted_profile_analyzer:2", "fix_state": "Affected", "package_name": "rhtpa/rhtpa-trustification-service-rhel9", "product_name": "Red Hat Trusted Profile Analyzer"}], "public_date": "2026-03-02T21:15:16Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-3336\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-3336\nhttps://aws.amazon.com/security/security-bulletins/2026-005-AWS/\nhttps://github.com/aws/aws-lc/releases/tag/v1.69.0"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.41.0,1.69.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "AWS-LC", "source": "cna", "vendor": "AWS"}, "product": "aws-lc", "vendor": "aws"}], "analysis": {"en": {"generated_at": "2026-04-17T13:28:47.831461+00:00", "value": {"mitigation_remediation": ["Upgrade your application to use AWS\u2011LC version 1.69.0 or later, which fixes the verification logic.", "Rebuild all linked binaries to ensure they reference the updated AWS\u2011LC library.", "Verify that PKCS7 verification behaves correctly by executing targeted tests against known bad and good PKCS7 objects."], "summary": {"action": "Upgrade", "impact": "Certificate chain validation bypass"}, "threat_synthesis": {"affected_systems": "Amazon Web Services (AWS) does not need to take action. Applications that link directly against the AWS\u2011LC library, such as custom cryptographic tools or services that perform PKCS7 processing, are vulnerable if they use any AWS\u2011LC version earlier than 1.69.0. The vulnerability is confined to the library; it does not affect customers who rely solely on AWS cloud services.", "description_and_impact": "PKCS7_verify() performs certificate chain validation when processing PKCS7 objects. In AWS\u2011LC, the implementation allows an unauthenticated user to bypass the verification for all but the final signer, effectively disabling the check for intermediate certificates. This flaw can be exploited by supplying a crafted PKCS7 object that is accepted as valid, allowing an attacker to create a trusted\u2011looking certificate chain, which is inferred from the description although not explicitly stated.", "risk_and_exploitability": "The CVSS base score of 8.7 marks this a high\u2011severity vulnerability. With an EPSS below 1% the likelihood of exploitation is low, and it is not listed in the CISA KEV catalog. The attack vector is external and does not require privileged access. Based on the description, it is inferred that an attacker could forge certificate chains, potentially leading to authentication bypass or other malicious activity in any system that accepts the forged PKCS7 objects."}}}}, "created": "2026-03-03T08:40:57.844419+00:00", "updated": "2026-04-17T13:30:19.609302+00:00", "vendors": ["aws", "aws$PRODUCT$aws-lc"]}