Findings

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 t…

Published May 13, 2026 · updated Jun 17, 2026 · haxx curl

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.

Code

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No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Affected

  • cpe haxx/curlversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-7009

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov

References

CVE-2026-7009 · ZeroDay Findings