CVE-2026-7009
OCSP stapling bypass with Apple SecTrust
Description
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.
INFO
Published Date :
May 13, 2026, 1:01 p.m.
Last Modified :
May 14, 2026, 2:17 p.m.
Remotely Exploit :
Yes !
Source :
2499f714-1537-4658-8207-48ae4bb9eae9
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update curl to the latest available version.
- Verify OCSP stapling functionality after update.
- Disable OCSP stapling if issues persist.
Public PoC/Exploit Available at Github
CVE-2026-7009 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-7009.
| URL | Resource |
|---|---|
| https://curl.se/docs/CVE-2026-7009.html | Patch Vendor Advisory |
| https://curl.se/docs/CVE-2026-7009.json | Product |
| https://hackerone.com/reports/3694390 | Exploit Issue Tracking Patch |
| http://www.openwall.com/lists/oss-security/2026/04/29/12 | Mailing List Patch Third Party Advisory |
| https://hackerone.com/reports/3694390 | Exploit Issue Tracking Patch |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-7009 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-7009
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
RAD Security Image Scanner
Dockerfile Makefile Go
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-7009 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-7009 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-295 Added CPE Configuration OR *cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* versions from (including) 8.17.0 up to (excluding) 8.20.0 Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/04/29/12 Types: Mailing List, Patch, Third Party Advisory Added Reference Type curl: https://curl.se/docs/CVE-2026-7009.html Types: Patch, Vendor Advisory Added Reference Type curl: https://curl.se/docs/CVE-2026-7009.json Types: Product Added Reference Type CISA-ADP: https://hackerone.com/reports/3694390 Types: Exploit, Issue Tracking, Patch Added Reference Type curl: https://hackerone.com/reports/3694390 Types: Exploit, Issue Tracking, Patch -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added Reference https://hackerone.com/reports/3694390 -
New CVE Received by 2499f714-1537-4658-8207-48ae4bb9eae9
May. 13, 2026
Action Type Old Value New Value Added Description 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. Added Reference https://curl.se/docs/CVE-2026-7009.html Added Reference https://curl.se/docs/CVE-2026-7009.json Added Reference https://hackerone.com/reports/3694390 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
May. 13, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/04/29/12