CVE-2026-84199
Last modified
CVE-2026-84199 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. Kyverno before 1.16.2 contains a server-side request forgery (SSRF) vulnerability in the APICall feature. The URL field in a Policy's ServiceCall configuration is not validated, so a user with namespace-level Policy creation permissions can direct Kyverno to make HTTP requests to arbitrary internal resources (e.g., cloud metadata endpoints such as 169.254.169.254 or other tenants' resources).
Description
Kyverno before 1.16.2 contains a server-side request forgery (SSRF) vulnerability in the APICall feature. The URL field in a Policy's ServiceCall configuration is not validated, so a user with namespace-level Policy creation permissions can direct Kyverno to make HTTP requests to arbitrary internal resources (e.g., cloud metadata endpoints such as 169.254.169.254 or other tenants' resources). Because Kyverno executes these requests using its cluster-wide high-privilege ServiceAccount (a Confused Deputy problem), the responses—potentially including other tenants' secrets and cloud IAM credentials—are returned in the PolicyReport and can be read by the attacker, breaking multi-tenant isolation.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| kyverno | kyverno | < 1.16.2 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-84199?
How severe is CVE-2026-84199?
How do I fix CVE-2026-84199?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-84191LibreNMS before 26.5.0 contains stored cross-site scripting …6.1
- CVE-2026-84192LibreNMS before 26.3.1 contains a stored cross-site scriptin…7.1
- CVE-2026-84193LibreNMS through 26.2.0 contains a stored cross-site scripti…5.8
- CVE-2026-84194LibreNMS versions >= 23.10.0 and < 26.2.0 (fixed in 26.4.0) …8.6
- CVE-2026-84195Kyverno before 1.16.4 automatically attaches the admission c…7.7
- CVE-2026-84196Kyverno before 1.18.0 contains a server-side request forgery…7.7
- CVE-2026-8420The BLOGCHAT Chat System plugin for WordPress is vulnerable …6.1
- CVE-2026-84200Kyverno versions v1.9.0 through v1.12.7 contain a policy exc…9
- CVE-2026-8421Concrete CMS 9.5.0 and below contains a CSRF vulnerability i…8.8
- CVE-2026-8422The Remove meta boxes per user role plugin for WordPress is …4.3
- CVE-2026-8423The JaviBola Custom Theme Test plugin for WordPress is vulne…4.3
- CVE-2026-8424The Remove Yellow BGBOX plugin for WordPress is vulnerable t…4.3
Are you affected by CVE-2026-84199?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST