{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-33487", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-20T16:16:48.971Z", "datePublished": "2026-03-26T17:17:51.101Z", "dateUpdated": "2026-08-26T12:05:06.791Z" }, "containers": { "cna": { "title": "goxmldsig has validateSignature Loop Variable Capture Signature Bypass", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-347", "lang": "en", "description": "CWE-347: Improper Verification of Cryptographic Signature", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-682", "lang": "en", "description": "CWE-682: Incorrect Calculation", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "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" } } ], "references": [ { "name": "https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-479m-364c-43vc", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-479m-364c-43vc" } ], "affected": [ { "vendor": "russellhaering", "product": "goxmldsig", "versions": [ { "version": "< 1.6.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-26T17:17:51.101Z" }, "descriptions": [ { "lang": "en", "value": "goxmlsig provides XML Digital Signatures implemented in Go. Prior to version 1.6.0, the `validateSignature` function in `validate.go` goes through the references in the `SignedInfo` block to find one that matches the signed element's ID. In Go versions before 1.22, or when `go.mod` uses an older version, there is a loop variable capture issue. The code takes the address of the loop variable `_ref` instead of its value. As a result, if more than one reference matches the ID or if the loop logic is incorrect, the `ref` pointer will always end up pointing to the last element in the `SignedInfo.References` slice after the loop. goxmlsig version 1.6.0 contains a patch." } ], "source": { "advisory": "GHSA-479m-364c-43vc", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-03-30T11:16:13.379400Z", "id": "CVE-2026-33487", "options": [ { "Exploitation": "poc" }, { "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": "2026-03-30T11:16:34.970Z" } }, { "affected": [ { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:multicluster_globalhub:1.3::el9" ], "defaultStatus": "affected", "packageName": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product": "Multicluster Global Hub 1.3.4", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1779212259", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:multicluster_globalhub:1.5::el9" ], "defaultStatus": "affected", "packageName": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product": "Multicluster Global Hub 1.5.6", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1778867753", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:acm:2.14::el9" ], "defaultStatus": "affected", "packageName": "rhacm2/acm-grafana-rhel9", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.14", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1782693386", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:acm:2.15::el9" ], "defaultStatus": "affected", "packageName": "rhacm2/acm-grafana-rhel9", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.15", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1777142269", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:multicluster_globalhub:1.4::el9" ], "defaultStatus": "affected", "packageName": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product": "Red Hat multicluster global hub 1.4.2", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1779579439", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:multicluster_globalhub:1.6::el9" ], "defaultStatus": "affected", "packageName": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product": "Red Hat multicluster global hub 1.6.0", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1780167118", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:openshift_gitops:1.18::el8" ], "defaultStatus": "affected", "packageName": "openshift-gitops-1/dex-rhel8", "product": "Red Hat OpenShift GitOps 1.18", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1779116359", "versionType": "rpm" } ] }, { "collectionURL": "https://catalog.redhat.com/software/containers/", "cpes": [ "cpe:/a:redhat:openshift_gitops:1.19::el8" ], "defaultStatus": "affected", "packageName": "openshift-gitops-1/dex-rhel8", "product": "Red Hat OpenShift GitOps 1.19", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "1779209965", "versionType": "rpm" } ] }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:advanced_cluster_security:4" ], "defaultStatus": "unaffected", "packageName": "advanced-cluster-security/rhacs-main-rhel8", "product": "Red Hat Advanced Cluster Security 4", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:advanced_cluster_security:4" ], "defaultStatus": "unaffected", "packageName": "advanced-cluster-security/rhacs-rhel8-operator", "product": "Red Hat Advanced Cluster Security 4", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:advanced_cluster_security:4" ], "defaultStatus": "unaffected", "packageName": "advanced-cluster-security/rhacs-roxctl-rhel8", "product": "Red Hat Advanced Cluster Security 4", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:advanced_cluster_security:4" ], "defaultStatus": "unaffected", "packageName": "advanced-cluster-security/rhacs-scanner-v4-rhel8", "product": "Red Hat Advanced Cluster Security 4", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:10" ], "defaultStatus": "unaffected", "packageName": "grafana", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "unaffected", "packageName": "grafana", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "unaffected", "packageName": "grafana", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" } ], "datePublic": "2026-03-26T17:17:51.101Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in goxmlsig, a Go library for XML Digital Signatures. This vulnerability arises from a programming error, specifically a loop variable capture issue, within the `validateSignature` function. When processing XML Digital Signatures, this error can cause the system to incorrectly validate the signature, potentially allowing an attacker to bypass integrity checks. This issue affects Go versions before 1.22 or projects using older `go.mod` configurations." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "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" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-347", "description": "Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-33487" }, { "name": "RHBZ#2451814", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451814" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33487.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:22423" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:21769" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:36882" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:13548" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:20946" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:20943" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:22347" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:23345" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:22423: Multicluster Global Hub 1.3.4" }, { "lang": "en", "value": "RHSA-2026:21769: Multicluster Global Hub 1.5.6" }, { "lang": "en", "value": "RHSA-2026:36882: Red Hat Advanced Cluster Management for Kubernetes 2.14" }, { "lang": "en", "value": "RHSA-2026:13548: Red Hat Advanced Cluster Management for Kubernetes 2.15" }, { "lang": "en", "value": "RHSA-2026:20946: Red Hat OpenShift GitOps 1.18" }, { "lang": "en", "value": "RHSA-2026:20943: Red Hat OpenShift GitOps 1.19" }, { "lang": "en", "value": "RHSA-2026:22347: Red Hat multicluster global hub 1.4.2" }, { "lang": "en", "value": "RHSA-2026:23345: Red Hat multicluster global hub 1.6.0" } ], "timeline": [ { "lang": "en", "time": "2026-03-26T18:02:32.278Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-03-26T17:17:51.101Z", "value": "Made public." } ], "title": "github.com/russellhaering/goxmldsig: goxmlsig: Integrity bypass due to incorrect XML Digital Signature validation via loop variable capture issue", "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_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-08-26T12:05:06.791Z" } } ] } }