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.
Published: 2026-11-10
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 13 Nov 2026 12:00:00 +0000

Type Values Removed Values Added
Title Cross-User Data Leakage via Misconstructed Cache Key in Kong Request-Callout Plugin

Thu, 12 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Konghq
Konghq kong Ai Gateway
Konghq kong Gateway Enterprise
Vendors & Products Konghq
Konghq kong Ai Gateway
Konghq kong Gateway Enterprise

Thu, 12 Nov 2026 14:15:00 +0000

Type Values Removed Values Added
Title Cross-user Data Leakage via Cached Request-callout Responses

Wed, 11 Nov 2026 23:15:00 +0000

Type Values Removed Values Added
Title Cross-user Data Leakage via Cached Request-callout Responses

Tue, 10 Nov 2026 22:00:00 +0000

Type Values Removed Values 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.
Weaknesses CWE-524
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Konghq Kong Ai Gateway Kong Gateway Enterprise
cve-icon MITRE

Status: PUBLISHED

Assigner: Kong

Published:

Updated: 2026-11-13T13:41:26.043Z

Reserved: 2026-11-05T08:13:50.698Z

Link: CVE-2026-123041

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T22:18:28.870

Modified: 2026-11-13T14:17:49.347

Link: CVE-2026-123041

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-13T11:45:20Z

Weaknesses
  • CWE-524

    Use of Cache Containing Sensitive Information