CVE-2026-34148

{"id": "CVE-2026-34148", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34148", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-04-06T15:35:17.193226Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "@fedify", "product": "fedify", "versions": [{"status": "affected", "version": "< 1.9.6"}, {"status": "affected", "version": ">= 1.10.0, < 1.10.5"}, {"status": "affected", "version": ">= 2.0.0, < 2.0.8"}, {"status": "affected", "version": ">= 2.1.0, < 2.1.1"}]}, {"vendor": "@fedify", "product": "vocab-runtime", "versions": [{"status": "affected", "version": "< 2.0.8"}, {"status": "affected", "version": ">= 2.1.0, < 2.1.1"}]}]}], "published": "2026-04-06T16:16:34.387", "references": [{"url": "https://github.com/fedify-dev/fedify/releases/tag/1.10.5", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fedify-dev/fedify/releases/tag/1.9.6", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fedify-dev/fedify/releases/tag/2.0.8", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fedify-dev/fedify/releases/tag/2.1.1", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fedify-dev/fedify/security/advisories/GHSA-gm9m-gwc4-hwgp", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to 1.9.6, 1.10.5, 2.0.8, and 2.1.1, @fedify/fedify follows HTTP redirects recursively in its remote document loader and authenticated document loader without enforcing a maximum redirect count or visited-URL loop detection. An attacker who controls a remote ActivityPub key or actor URL can force a server using Fedify to make repeated outbound requests from a single inbound request, leading to resource consumption and denial of service. This vulnerability is fixed in 1.9.6, 1.10.5, 2.0.8, and 2.1.1."}, {"lang": "es", "value": "Fedify es una biblioteca TypeScript para construir aplicaciones de servidor federadas impulsadas por ActivityPub. Antes de 1.9.6, 1.10.5, 2.0.8 y 2.1.1, @fedify/fedify sigue las redirecciones HTTP recursivamente en su cargador de documentos remoto y cargador de documentos autenticado sin aplicar un recuento m\u00e1ximo de redirecciones o detecci\u00f3n de bucles de URL visitadas. Un atacante que controla una clave ActivityPub remota o una URL de actor puede forzar a un servidor que usa Fedify a realizar repetidas solicitudes salientes a partir de una \u00fanica solicitud entrante, lo que lleva al consumo de recursos y a la denegaci\u00f3n de servicio. Esta vulnerabilidad est\u00e1 corregida en 1.9.6, 1.10.5, 2.0.8 y 2.1.1."}], "lastModified": "2026-10-26T22:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "ECF8706E-2E6C-4A6A-8F8C-DE9933F39224", "versionEndExcluding": "1.9.6"}, {"criteria": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "BF4917D5-C6AA-45E3-B5F6-B3DCEF460212", "versionEndExcluding": "1.10.5", "versionStartIncluding": "1.10.0"}, {"criteria": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "DD7D6EB1-0E97-43AE-9412-FA558F8FFA6B", "versionEndExcluding": "2.0.8", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:fedify:fedify\\/fedify:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "0613E25B-2982-4E31-A7FB-5FF0F10FA724", "versionEndExcluding": "2.1.1", "versionStartIncluding": "2.1.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fedify:fedify\\/vocab-runtime:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "C298320F-CF10-4C9F-B8B5-F96ACDBFA963", "versionEndExcluding": "2.0.8"}, {"criteria": "cpe:2.3:a:fedify:fedify\\/vocab-runtime:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "B6CC76BF-8504-4630-832A-F5EA09191546", "versionEndExcluding": "2.1.1", "versionStartIncluding": "2.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}