Unrated severityNVD Advisory· Published Sep 7, 2021· Updated Aug 4, 2024
Server-Side Request Forgery vulnerability in misskey
CVE-2021-39195
Description
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.
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Affected products
2<12.90.0+ 1 more
- (no CPE)range: <12.90.0
- (no CPE)range: < 12.90.0
Patches
Vulnerability mechanics
References
3- github.com/misskey-dev/misskey/blob/develop/CHANGELOG.mdmitrex_refsource_MISC
- github.com/misskey-dev/misskey/commit/e1a8b158e04ad567d92d8daf3cc0898ee18f1a2emitrex_refsource_MISC
- github.com/misskey-dev/misskey/security/advisories/GHSA-mqv7-gxh4-r5vfmitrex_refsource_CONFIRM
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