CVE-2026-84196
8.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Summary
Kyverno before 1.18.0 contains a server-side request forgery vulnerability in apiCall.service.url that allows authenticated users to send arbitrary HTTP requests by injecting user-controlled input through variable substitution. Attackers can target internal services, cloud metadata endpoints, and loopback addresses, with response data reflected in admission error messages enabling non-blind data exfiltration.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| kyverno | kyverno | 0 < 1.18.0 | affected |
| kyverno | kyverno | 1.18.0 | unaffected |
Weaknesses
- CWE-918: Server-Side Request Forgery (SSRF)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/kyverno/kyverno/security/advisories/GHSA-qr4g-8hrp-c4rw
- https://www.vulncheck.com/advisories/kyverno-before-1.18.0-server-side-request-forgery-via-apicall
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