All vulnerabilities

Servers and applications

CVE-2013-4545

cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Severity
Medium 4.3
Published
23 Nov 2013
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • Version 7.32.0
  • Version 7.31.0
  • Version 7.30.0
  • Version 7.29.0
All 34 release lines
  • Version 7.18.0
  • Version 7.18.1
  • Version 7.18.2
  • Version 7.19.0
  • Version 7.19.1
  • Version 7.19.2
  • Version 7.19.3
  • Version 7.19.4
  • Version 7.19.5
  • Version 7.19.6
  • Version 7.19.7
  • Version 7.20.0
  • Version 7.20.1
  • Version 7.21.0
  • Version 7.21.1
  • Version 7.21.2
  • Version 7.21.3
  • Version 7.21.4
  • Version 7.21.5
  • Version 7.21.6
  • Version 7.21.7
  • Version 7.22.0
  • Version 7.23.0
  • Version 7.23.1
  • Version 7.24.0
  • Version 7.25.0
  • Version 7.26.0
  • Version 7.27.0
  • Version 7.28.0
  • Version 7.28.1
  • Version 7.29.0
  • Version 7.30.0
  • Version 7.31.0
  • Version 7.32.0
curlServers and applications · cpe:a:haxx:libcurl
  • Version 7.32.0
  • Version 7.31.0
  • Version 7.30.0
  • Version 7.29.0
All 34 release lines
  • Version 7.18.0
  • Version 7.18.1
  • Version 7.18.2
  • Version 7.19.0
  • Version 7.19.1
  • Version 7.19.2
  • Version 7.19.3
  • Version 7.19.4
  • Version 7.19.5
  • Version 7.19.6
  • Version 7.19.7
  • Version 7.20.0
  • Version 7.20.1
  • Version 7.21.0
  • Version 7.21.1
  • Version 7.21.2
  • Version 7.21.3
  • Version 7.21.4
  • Version 7.21.5
  • Version 7.21.6
  • Version 7.21.7
  • Version 7.22.0
  • Version 7.23.0
  • Version 7.23.1
  • Version 7.24.0
  • Version 7.25.0
  • Version 7.26.0
  • Version 7.27.0
  • Version 7.28.0
  • Version 7.28.1
  • Version 7.29.0
  • Version 7.30.0
  • Version 7.31.0
  • Version 7.32.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2013-4545
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2013-4545