CVE-2026-7009

Summary

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.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://curl.se/docs/CVE-2026-7009.html ↗

Additional information

• NVD record
• https://curl.se/docs/CVE-2026-7009.htmlPatch
• https://hackerone.com/reports/3694390Patch
• http://www.openwall.com/lists/oss-security/2026/04/29/12Patch
• https://curl.se/docs/CVE-2026-7009.json