All vulnerabilities

Servers and applications

CVE-2026-7009

When curl is told to use the Certificate Status Request TLS extension, often referred to as *OCSP stapling*, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine.

Severity
Medium 5.3
Published
13 May 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.20.0
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • From 8.17.0 before 8.20.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-7009
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-7009