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CVE-2021-22923 Moderate

Metalink download sends credentials

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 downloads or tries to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

Exploit probability 1.9%
Published July 21, 2021
Required by Not available
Last source change May 27, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

86 explicit affected versions

Unknown Unknown

145 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2021-22923

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.

View original source
Open Source Vulnerabilities CURL-CVE-2021-22923

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 downloads or tries to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.

View original source

05 / REFERENCES

Further evidence