All vulnerabilities

Servers and applications

CVE-2023-28321

An improper certificate validation vulnerability exists in curl <v8.1.0 in the way it supports matching of wildcard patterns when listed as "Subject Alternative Name" in TLS server certificates. curl can be built to use its own name matching function for TLS rather than one provided by a TLS library. This private wildcard matching function would match IDN (International Domain Name) hosts…

Severity
Medium 5.9
Published
26 May 2023
Last changed
23 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.1.0
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • Every version before 8.1.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-28321
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-28321