All vulnerabilities

Servers and applications

CVE-2022-27780

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and…

Severity
High 7.5
Published
2 Jun 2022
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.83.1
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • From 7.80.0 before 7.83.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-27780
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-27780