CVE-2025-67500

{"id": "CVE-2025-67500", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-67500", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2025-12-10T15:42:25.833580Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "mastodon", "product": "mastodon", "versions": [{"status": "affected", "version": "< 4.2.28"}, {"status": "affected", "version": ">= 4.3.0-beta.1, < 4.3.15"}, {"status": "affected", "version": ">= 4.4.0-beta.1, < 4.4.10"}, {"status": "affected", "version": ">= 4.5.0-beta.1, < 4.5.3"}]}]}], "published": "2025-12-10T00:16:11.270", "references": [{"url": "https://github.com/mastodon/mastodon/pull/37077/commits/9957d3218cb33fea6a44bb285e2ba4795a059e4f", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-gwhw-gcjx-72v8", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-204"}]}], "descriptions": [{"lang": "en", "value": "Mastodon is a free, open-source social network server based on ActivityPub. Versions 4.2.27 and prior, 4.3.0-beta.1 through 4.3.14, 4.4.0-beta.1 through 4.4.9, 4.5.0-beta.1 through 4.5.2 have discrepancies in error handling which allow checking whether a given status exists by sending a request with a non-English Accept-Language header. Using this behavior, an attacker who knows the identifier of a particular status they are not allowed to see can confirm whether this status exists or not. This cannot be used to learn the contents of the status or any other property besides its existence. This issue is fixed in versions 4.2.28, 4.3.15, 4.4.10 and 4.5.3."}, {"lang": "es", "value": "Mastodon es un servidor de red social gratuito y de c\u00f3digo abierto basado en ActivityPub. Las versiones 4.2.27 y anteriores, 4.3.0-beta.1 hasta 4.3.14, 4.4.0-beta.1 hasta 4.4.9, 4.5.0-beta.1 hasta 4.5.2 tienen discrepancias en el manejo de errores que permiten verificar si un estado dado existe enviando una solicitud con un encabezado Accept-Language no ingl\u00e9s. Usando este comportamiento, un atacante que conoce el identificador de un estado particular que no tiene permitido ver puede confirmar si este estado existe o no. Esto no puede usarse para conocer el contenido del estado o cualquier otra propiedad adem\u00e1s de su existencia. Este problema est\u00e1 solucionado en las versiones 4.2.28, 4.3.15, 4.4.10 y 4.5.3."}], "lastModified": "2026-10-14T21:10:00.183", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C9100527-3A10-4D09-A322-7487BB36102D", "versionEndExcluding": "4.2.28"}, {"criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53839555-56EC-43AE-B344-643F0F8326E6", "versionEndExcluding": "4.3.15", "versionStartIncluding": "4.3.0"}, {"criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8F59D92C-1E2E-454F-91F8-4764E88D61E4", "versionEndExcluding": "4.4.10", "versionStartIncluding": "4.4.0"}, {"criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20E7A258-0D9F-40E6-ABD5-DB3C60FE95D8", "versionEndExcluding": "4.5.3", "versionStartIncluding": "4.5.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}