CVE-2026-48978

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{"affected": [{"affectedData": [{"product": "oras-go", "vendor": "oras-project", "versions": [{"status": "affected", "version": "< 2.6.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "oras-go is a Go library for managing OCI artifacts. Prior to 2.6.1, auth.Client follows the realm URL from a registry's WWW-Authenticate: Bearer challenge without validating the scheme or host, allowing a malicious or compromised registry to cause SSRF to internal networks such as http://169.254.169.254/, http://10.0.0.x/, and http://127.0.0.1/, or to downgrade a registry contacted over https:// to an http:// token endpoint in registry/remote/auth/client.go through Client.Do(), Client.fetchBearerToken(), fetchDistributionToken, and fetchOAuth2Token. This issue is fixed in version 2.6.1."}, {"lang": "es", "value": "oras-go es una biblioteca Go para gestionar artefactos OCI. Antes de la versi\u00f3n 2.6.1, auth.Client sigue la URL del \u2019realm\u2019 de un desaf\u00edo WWW-Authenticate: Bearer de un registro sin validar el esquema o el host, permitiendo que un registro malicioso o comprometido cause SSRF a redes internas como http://169.254.169.254/, http://10.0.0.x/ y http://127.0.0.1/, o degradar un registro contactado a trav\u00e9s de HTTPS a un endpoint de token HTTP en registry/remote/auth/client.go a trav\u00e9s de Client.Do(), Client.fetchBearerToken(), fetchDistributionToken y fetchOAuth2Token. Este problema est\u00e1 solucionado en la versi\u00f3n 2.6.1."}], "id": "CVE-2026-48978", "lastModified": "2026-10-24T20:10:00.137", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 2.1, "baseSeverity": "LOW", "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": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/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": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48978", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-21T02:06:39.340086Z", "version": "2.0.3"}}]}, "published": "2026-07-17T20:17:21.693", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/oras-project/oras-go/commit/7a9f4b0b9558821b0422152ebe21ae56930fe764"}, {"source": "security-advisories@github.com", "url": "https://github.com/oras-project/oras-go/releases/tag/v2.6.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/oras-project/oras-go/security/advisories/GHSA-xf85-363p-868w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-319"}, {"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "oras-go: oras-go: Information disclosure and TLS downgrade via malicious registry realm", "id": "2499689", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499689"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-918", "details": ["A flaw was found in oras-go. The auth.Client in oras-go does not properly validate the scheme or host of the realm URL provided in a registry's WWW-Authenticate: Bearer challenge. A remote attacker, operating a malicious registry or performing a man-in-the-middle attack, could exploit this to perform Server-Side Request Forgery (SSRF) against internal networks, potentially disclosing sensitive information. Additionally, the flaw could lead to a Transport Layer Security (TLS) downgrade, causing user credentials to be sent over plaintext."], "mitigation": {"lang": "en:us", "value": "Upgrade to oras-go v2.6.1 or later."}, "name": "CVE-2026-48978", "package_state": [{"cpe": "cpe:/a:redhat:gatekeeper:3", "fix_state": "Under investigation", "package_name": "gatekeeper/gatekeeper-rhel9", "product_name": "Gatekeeper 3"}, {"cpe": "cpe:/a:redhat:multicluster_globalhub", "fix_state": "Under investigation", "package_name": "multicluster-globalhub/multicluster-globalhub-grafana-rhel9", "product_name": "Multicluster Global Hub"}, {"cpe": "cpe:/a:redhat:service_mesh:3", "fix_state": "Under investigation", "package_name": "openshift-service-mesh/istio-rhel9-operator", "product_name": "OpenShift Service Mesh 3"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/cnf-tests-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/metallb-rhel8-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/metallb-rhel9-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/oc-mirror-plugin-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/oc-mirror-plugin-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-ansible-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-azure-cluster-api-controllers-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-console", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-console-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-helm-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-helm-rhel9-operator", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-olm-catalogd-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-olm-operator-controller-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-olm-rukpak-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-olm-rukpak-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-framework-tools-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-lifecycle-manager", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-lifecycle-manager-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-registry", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-registry-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-sdk-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ose-operator-sdk-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Under investigation", "package_name": "openshift4/ztp-site-generate-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Under investigation", "package_name": "rhosp-rhel8/osp-director-operator-bundle", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:17.1", "fix_state": "Under investigation", "package_name": "rhosp-rhel9/osp-director-operator-bundle", "product_name": "Red Hat OpenStack Platform 17.1"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Under investigation", "package_name": "rhoso-operators/openstack-operator-bundle", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Under investigation", "package_name": "rhoso-operators/rabbitmq-cluster-rhel9-operator", "product_name": "Red Hat OpenStack Platform 18.0"}], "public_date": "2026-07-01T21:35:45Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-48978\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-48978\nhttps://github.com/oras-project/oras-go/security/advisories/GHSA-xf85-363p-868w"], "statement": "A flaw was found in oras-go. The auth.Client follows the realm URL from a registry's Bearer challenge without validating scheme or host, enabling SSRF to internal networks and TLS downgrade attacks.", "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}]}, "product": "oras-go", "vendor": "oras-project"}], "created": "2026-07-16T01:15:03.838434+00:00", "updated": "2026-07-30T23:45:05.260373+00:00", "vendors": ["oras-project", "oras-project$PRODUCT$oras-go"]}