All vulnerabilities

Servers and applications

CVE-2023-27538

An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the…

Severity
Medium 5.5
Published
30 Mar 2023
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.0.0
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:libcurl
  • From 7.16.1 before 8.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-27538
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-27538