CVE-2026-67179
Genkit improper host header validation
Description
Genkit does not properly validate host request headers. Any host on the developer's network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result. Fixed on 2026-06-18.
INFO
Published Date :
Aug. 11, 2026, 4:17 p.m.
Last Modified :
Aug. 11, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
9119a7d8-5eab-497f-8521-727c672e3725
Affected Products
The following products are affected by CVE-2026-67179
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 9119a7d8-5eab-497f-8521-727c672e3725 | |||||
| CVSS 3.1 | HIGH | 9119a7d8-5eab-497f-8521-727c672e3725 |
Solution
- Update Genkit to the latest version.
- Restrict access to the Dev UI server.
- Validate host request headers rigorously.
- Disable unnecessary Genkit actions.
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-2026-67179.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-67179 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-2026-67179
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-67179 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-67179 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.
-
New CVE Received by 9119a7d8-5eab-497f-8521-727c672e3725
Aug. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'genkit-ai', 'product': 'genkit', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2026-06-18', 'versionType': 'custom'}, {'status': 'unaffected', 'version': '2026-06-18'}], 'defaultStatus': 'unknown'}] Added SSVC {'id': 'CVE-2026-67179', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-28T14:54:11.501038Z'} Added Description Genkit does not properly validate host request headers. Any host on the developer's network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result. Fixed on 2026-06-18. Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-644 Added Reference https://github.com/genkit-ai/genkit/issues/5581 Added Reference https://github.com/genkit-ai/genkit/pull/5587 Added Reference https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-223-01.json Added Reference https://www.cve.org/CVERecord?id=CVE-2026-67179