A security issue has been found in curl before version 7.78.0 When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from; often contrary to the user's expectations and intentions and without telling the user it happened. This flaw exists only in the curl tool. libcurl is not affected.
A security issue has been found in curl before version 7.78.0 When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from; often contrary to the user's expectations and intentions and without telling the user it happened. This flaw exists only in the curl tool. libcurl is not affected.
https://curl.se/docs/CVE-2021-22923.html https://github.com/curl/curl/pull/7176 https://github.com/curl/curl/commit/265b14d6b37c4298bd5556fabcbc37d36f911693
Workaround ========== The issue can be mitigated by making sure not to use metalink with curl.