CVE-2026-34148

{"id": "CVE-2026-34148", "cveTags": [], "metrics": {"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}]}, "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."}], "lastModified": "2026-04-14T01:58:27.517", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fedify:fedify:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC3E40EA-EA20-4D44-B901-0FB71ADECFB1", "versionEndIncluding": "1.9.5"}, {"criteria": "cpe:2.3:a:fedify:fedify:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2C0F0519-9085-4887-825C-6376E703665A", "versionEndIncluding": "1.10.4", "versionStartIncluding": "1.9.7"}, {"criteria": "cpe:2.3:a:fedify:fedify:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BB4DA2D9-6769-4ED9-9BAC-BC8D05A57B0E", "versionEndIncluding": "2.0.7", "versionStartIncluding": "1.10.6"}, {"criteria": "cpe:2.3:a:fedify:fedify:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFCB479D-C634-4676-A73E-4BD726631BAC", "versionEndIncluding": "2.1.0", "versionStartIncluding": "2.0.9"}, {"criteria": "cpe:2.3:a:fedify:vocab-runtime:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FDD90438-0A91-46E4-9A52-DC8163AA4FBE", "versionEndExcluding": "2.0.8"}, {"criteria": "cpe:2.3:a:fedify:vocab-runtime:2.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "65BDA9A8-AA73-4E76-A93E-705A6D44F675"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}