vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-22876): curl vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Mar 31, 2021 | Apr 1, 2021 | Apr 16, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Mar 31, 2021
Added
Apr 1, 2021
Modified
Apr 16, 2026
Description
curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.
Solutions
ubuntu-pro-upgrade-curlubuntu-pro-upgrade-libcurl3ubuntu-pro-upgrade-libcurl3-gnutlsubuntu-pro-upgrade-libcurl3-nssubuntu-upgrade-curlubuntu-upgrade-libcurl3ubuntu-upgrade-libcurl3-gnutlsubuntu-upgrade-libcurl3-nssubuntu-upgrade-libcurl4
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.