CVE-2026-123041
Kong Gateway Request-Callout Cache Poisoning Vulnerability
Description
The request-callout plugin in Kong Gateway Enterprise and Kong AI Gateway omits callout headers not sent by the client from its cache key, allowing a cached callout response for a caller to be served to another.
INFO
Published Date :
Nov. 10, 2026, 10:18 p.m.
Last Modified :
Nov. 10, 2026, 10:18 p.m.
Remotely Exploit :
Yes !
Source :
02762ae7-200e-4b20-9b2b-a77d5b8fc4cb
Affected Products
The following products are affected by CVE-2026-123041
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 4.0 | HIGH | 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb | ||||
| CVSS 4.0 | HIGH | 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb |
Solution
- Update Kong Gateway Enterprise to the latest version.
- Configure the cache key to include all headers.
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-2026-123041.
| URL | Resource |
|---|---|
| https://developer.konghq.com/ai-gateway/changelog/ | |
| https://developer.konghq.com/gateway/changelog/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-123041 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-2026-123041
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-2026-123041 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-123041 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 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb
Nov. 10, 2026
Action Type Old Value New Value Added Description The request-callout plugin in Kong Gateway Enterprise and Kong AI Gateway omits callout headers not sent by the client from its cache key, allowing a cached callout response for a caller to be served to another. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-524 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/123xxx/CVE-2026-123041.json">CVE-2026-123041</a> Added Reference https://developer.konghq.com/ai-gateway/changelog/ Added Reference https://developer.konghq.com/gateway/changelog/