{ "containers": { "cna": { "affected": [ { "product": "misskey", "vendor": "misskey-dev", "versions": [ { "status": "affected", "version": "< 12.90.0" } ] } ], "descriptions": [ { "lang": "en", "value": "Misskey is an open source, decentralized microblogging platform. In affected versions a Server-Side Request Forgery vulnerability exists in \"Upload from URL\" and remote attachment handling. This could result in the disclosure of non-public information within the internal network. This has been fixed in 12.90.0. However, if you are using a proxy, you will need to take additional measures. As a workaround this exploit may be avoided by appropriately restricting access to private networks from the host where the application is running." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-918", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-09-07T19:00:12.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/misskey-dev/misskey/security/advisories/GHSA-mqv7-gxh4-r5vf" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/misskey-dev/misskey/commit/e1a8b158e04ad567d92d8daf3cc0898ee18f1a2e" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/misskey-dev/misskey/blob/develop/CHANGELOG.md#12900-20210904" } ], "source": { "advisory": "GHSA-mqv7-gxh4-r5vf", "discovery": "UNKNOWN" }, "title": "Server-Side Request Forgery vulnerability in misskey", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-39195", "STATE": "PUBLIC", "TITLE": "Server-Side Request Forgery vulnerability in misskey" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "misskey", "version": { "version_data": [ { "version_value": "< 12.90.0" } ] } } ] }, "vendor_name": "misskey-dev" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Misskey is an open source, decentralized microblogging platform. 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