Vulnerability Report

CVE-2026-7009

Title: OCSP stapling bypass in libcurl

Security Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-7009.

CWE Category NVD-CWE-noinfo
Published Date May 13, 2026
Modified Date May 14, 2026
Exploit Status Not Found
Score 5.3 CVSS v
Exploit Probability (EPSS)
0.01%

Vulnerability Summary

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.

Impacted Vendors

D
daniel_stenberg 1
H
haxx 1

Reference Links

https://curl.se/docs/CVE-2026-7009.html https://curl.se/docs/CVE-2026-7009.json https://hackerone.com/reports/3694390 http://www.openwall.com/lists/oss-security/2026/04/29/12
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
5.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-7009 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Stack

No specific products linked.