CVE-2026-94368

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94368", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-09-21T11:13:36.872Z", "datePublished": "2026-09-21T11:45:12.776Z", "dateUpdated": "2026-09-25T06:45:02.664Z"}, "containers": {"cna": {"title": "Noobaa-core: noobaa-core: presigned put url escalation to copyobject via unsigned x-amz-copy-source header", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in the signature verification logic of noobaa-core, the core component of the NooBaa Multicloud Object Gateway. The issue occurs when the service processes S3 presigned URLs using Signature Version 4 (SigV4). Due to improper validation, the service fails to reject requests containing unsigned x-amz- headers, instead simply dropping them from the signature calculation. This allows an attacker who possesses a valid presigned PUT URL to add an unsigned x-amz-copy-source header, effectively converting a simple upload into a CopyObject operation. This can lead to unauthorized access and copying of any data the original signer is permitted to reach across the entire storage system."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Openshift Data Foundation 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "odf4/mcg-core-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_data_foundation:4"]}, {"vendor": "Red Hat", "product": "Red Hat Openshift Data Foundation 4", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhceph-dev/odf4-mcg-core-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_data_foundation:4"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-94368", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2537364", "name": "RHBZ#2537364", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-09-21T11:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-347", "description": "Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-347: Improper Verification of Cryptographic Signature", "workarounds": [{"lang": "en", "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."}], "timeline": [{"lang": "en", "time": "2026-09-09T10:49:16.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-09-21T11:00:00.000Z", "value": "Made public."}], "credits": [{"lang": "en", "value": "Red Hat would like to thank Oren Yomtov (Act Security) for reporting this issue."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-09-25T06:45:02.664Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-21T19:40:21.563755Z", "id": "CVE-2026-94368", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-09-21T20:46:26.219Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-94368", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-21T19:40:21.563755Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-21T19:40:22.590Z"}}], "cna": {"title": "Noobaa-core: noobaa-core: presigned put url escalation to copyobject via unsigned x-amz-copy-source header", "credits": [{"lang": "en", "value": "Red Hat would like to thank Oren Yomtov (Act Security) for reporting this issue."}], "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"cpes": ["cpe:/a:redhat:openshift_data_foundation:4"], "vendor": "Red Hat", "product": "Red Hat Openshift Data Foundation 4", "packageName": "odf4/mcg-core-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:openshift_data_foundation:4"], "vendor": "Red Hat", "product": "Red Hat Openshift Data Foundation 4", "packageName": "rhceph-dev/odf4-mcg-core-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}], "timeline": [{"lang": "en", "time": "2026-09-09T10:49:16.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-09-21T11:00:00.000Z", "value": "Made public."}], "datePublic": "2026-09-21T11:00:00.000Z", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-94368", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2537364", "name": "RHBZ#2537364", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "workarounds": [{"lang": "en", "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."}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in the signature verification logic of noobaa-core, the core component of the NooBaa Multicloud Object Gateway. The issue occurs when the service processes S3 presigned URLs using Signature Version 4 (SigV4). Due to improper validation, the service fails to reject requests containing unsigned x-amz- headers, instead simply dropping them from the signature calculation. This allows an attacker who possesses a valid presigned PUT URL to add an unsigned x-amz-copy-source header, effectively converting a simple upload into a CopyObject operation. This can lead to unauthorized access and copying of any data the original signer is permitted to reach across the entire storage system."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-347", "description": "Improper Verification of Cryptographic Signature"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-09-25T06:45:02.664Z"}, "x_redhatCweChain": "CWE-347: Improper Verification of Cryptographic Signature"}}, "cveMetadata": {"cveId": "CVE-2026-94368", "state": "PUBLISHED", "dateUpdated": "2026-09-25T06:45:02.664Z", "dateReserved": "2026-09-21T11:13:36.872Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2026-09-21T11:45:12.776Z", "assignerShortName": "redhat"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift_data_foundation:4"], "defaultStatus": "affected", "packageName": "odf4/mcg-core-rhel9", "product": "Red Hat Openshift Data Foundation 4", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift_data_foundation:4"], "defaultStatus": "affected", "packageName": "rhceph-dev/odf4-mcg-core-rhel9", "product": "Red Hat Openshift Data Foundation 4", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in the signature verification logic of noobaa-core, the core component of the NooBaa Multicloud Object Gateway. The issue occurs when the service processes S3 presigned URLs using Signature Version 4 (SigV4). Due to improper validation, the service fails to reject requests containing unsigned x-amz- headers, instead simply dropping them from the signature calculation. This allows an attacker who possesses a valid presigned PUT URL to add an unsigned x-amz-copy-source header, effectively converting a simple upload into a CopyObject operation. This can lead to unauthorized access and copying of any data the original signer is permitted to reach across the entire storage system."}], "id": "CVE-2026-94368", "lastModified": "2026-09-22T19:37:36.747", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "secalert@redhat.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-94368", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-21T19:40:21.563755Z", "version": "2.0.3"}}]}, "published": "2026-09-21T12:17:29.010", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-94368"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2537364"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Oren Yomtov (act.security) for reporting this issue.", "bugzilla": {"description": "noobaa-core: noobaa-core: Presigned PUT URL escalation to CopyObject via unsigned x-amz-copy-source header", "id": "2537364", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2537364"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-347", "details": ["A flaw was found in the signature verification logic of noobaa-core, the core component of the NooBaa Multicloud Object Gateway. The issue occurs when the service processes S3 presigned URLs using Signature Version 4 (SigV4). Due to improper validation, the service fails to reject requests containing unsigned x-amz- headers, instead simply dropping them from the signature calculation. This allows an attacker who possesses a valid presigned PUT URL to add an unsigned x-amz-copy-source header, effectively converting a simple upload into a CopyObject operation. This can lead to unauthorized access and copying of any data the original signer is permitted to reach across the entire storage system."], "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-2026-94368", "package_state": [{"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "odf4/mcg-core-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Affected", "package_name": "rhceph-dev/odf4-mcg-core-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}], "public_date": "2026-09-21T11:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-94368\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-94368"], "statement": "The Red Hat Product Security team has assessed the severity of this vulnerability as Important, given that an attacker only needs a valid presigned URL to exploit the flaw. Successful exploitation allows an attacker to bypass intended access controls to read or overwrite any data accessible to the signer of the URL. The vulnerability's root cause is a failure to enforce that all x-amz- headers in a SigV4 request are included in the cryptographic signature.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 96.0, "source": "matching"}]}, "original": {"product": "Red Hat Openshift Data Foundation 4", "source": "cna", "vendor": "Red Hat"}, "product": "openshift_data_foundation", "vendor": "redhat"}], "created": "2026-09-21T13:30:16.803401+00:00", "updated": "2026-09-21T19:00:08.063506+00:00", "vendors": ["redhat", "redhat$PRODUCT$openshift_data_foundation"]}