All vulnerabilities

Servers and applications

CVE-2021-22876

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…

Severity
Medium 5.3
Published
1 Apr 2021
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:libcurl
  • From 7.1.1 up to 7.75.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-22876
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-22876