CVE-2026-5078

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:npm/morgan", "product": "morgan", "vendor": "morgan", "versions": [{"lessThanOrEqual": "1.10.1", "status": "affected", "version": "1.2.0", "versionType": "semver"}, {"status": "unaffected", "version": "1.11.0", "versionType": "semver"}]}], "source": "ce714d77-add3-4f53-aff5-83d477b104bb"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:morgan_project:morgan:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "BB39C2E2-D0C6-4871-944A-08DBC91BC438", "versionEndExcluding": "1.11.0", "versionStartIncluding": "1.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Impact: The morgan logging middleware's :remote-user token extracts the Basic auth username from the Authorization request header and writes it to the log stream without neutralizing control characters. An unauthenticated attacker can send a crafted Authorization Basic header containing CR or LF bytes to inject forged log lines, breaking the one-request-per-line structure of access logs and enabling log forgery against downstream log consumers. The built-in combined, common, default, and short formats are affected, as well as any custom format that references :remote-user. Affected versions: morgan 1.2.0 through 1.10.1. Patches: upgrade to morgan 1.11.0, which neutralizes control characters in the :remote-user token output. Workarounds: use a custom format string that does not include :remote-user."}, {"lang": "es", "value": "Impacto: El token :remote-user del middleware de registro morgan extrae el nombre de usuario de autenticaci\u00f3n Basic del encabezado de solicitud de autorizaci\u00f3n y lo escribe en el flujo de registro sin neutralizar los caracteres de control. Un atacante no autenticado puede enviar un encabezado Authorization Basic manipulado que contiene bytes CR o LF para inyectar l\u00edneas de registro falsificadas, rompiendo la estructura de una solicitud por l\u00ednea de los registros de acceso y permitiendo la falsificaci\u00f3n de registros contra los consumidores de registros posteriores. Los formatos integrados combined, common, default y short se ven afectados, as\u00ed como cualquier formato personalizado que haga referencia a :remote-user. Versiones afectadas: morgan 1.2.0 hasta 1.10.1. Parches: actualizar a morgan 1.11.0, que neutraliza los caracteres de control en la salida del token :remote-user. Soluciones alternativas: usar una cadena de formato personalizada que no incluya :remote-user."}], "id": "CVE-2026-5078", "lastModified": "2026-07-22T19:10:00.120", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5078", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-03T13:16:59.663217Z", "version": "2.0.3"}}]}, "published": "2026-06-03T08:16:19.743", "references": [{"source": "ce714d77-add3-4f53-aff5-83d477b104bb", "tags": ["Third Party Advisory"], "url": "https://cna.openjsf.org/security-advisories.html"}, {"source": "ce714d77-add3-4f53-aff5-83d477b104bb", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/expressjs/morgan/security/advisories/GHSA-4vj7-5mj6-jm8m"}], "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-117"}], "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "type": "Secondary"}]}

{"bugzilla": {"description": "morgan: morgan: Log forgery due to unneutralized control characters", "id": "2484311", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484311"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-93", "details": ["A flaw was found in the morgan HTTP request logging middleware (versions 1.2.0 through 1.10.1). The :remote-user token writes the Basic auth username to access logs without neutralizing CR/LF control characters. An unauthenticated remote attacker can inject forged log lines via a crafted Authorization header, breaking one-request-per-line log structure and enabling log forgery against downstream consumers."], "mitigation": {"lang": "en:us", "value": "Use a custom morgan format string that does not include :remote-user, or upgrade to morgan 1.11.0 or later."}, "name": "CVE-2026-5078", "package_state": [{"cpe": "cpe:/a:redhat:confidential_compute_attestation:1", "fix_state": "Under investigation", "package_name": "openshift-sandboxed-containers/osc-pccs", "product_name": "Confidential Compute Attestation"}, {"cpe": "cpe:/a:redhat:cryostat:4", "fix_state": "Under investigation", "package_name": "cryostat/cryostat-openshift-console-plugin-rhel9", "product_name": "Cryostat 4"}, {"cpe": "cpe:/a:redhat:rhdh:1", "fix_state": "Under investigation", "package_name": "rhdh/rhdh-hub-rhel9", "product_name": "Red Hat Developer Hub"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "linux-sgx", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "linux-sgx", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Under investigation", "package_name": "morgan", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs20", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs22", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs24", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs25", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs26", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Under investigation", "package_name": "odf4/mcg-core-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:openshift_data_foundation:4", "fix_state": "Under investigation", "package_name": "rhceph-dev/odf4-mcg-core-rhel9", "product_name": "Red Hat Openshift Data Foundation 4"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Under investigation", "package_name": "ansible-automation-platform/automation-portal", "product_name": "Self-service automation portal 2"}], "public_date": "2026-06-03T05:56:49Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5078\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5078\nhttps://cna.openjsf.org/security-advisories.html\nhttps://github.com/expressjs/morgan/security/advisories/GHSA-4vj7-5mj6-jm8m"], "statement": "The morgan npm logging middleware is vulnerable to log forgery via unneutralized control characters in the :remote-user token extracted from Basic Authorization headers. A remote unauthenticated attacker can send crafted requests to inject forged log lines, impacting log integrity. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N (5.3). Built-in combined, common, default, and short formats are affected; fixed in morgan 1.11.0. Affects ODF mcg-core, RHDH, hummingbird nodejs, cryostat, AAP portal, and other npm morgan consumers.", "threat_severity": "Moderate"}

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