CVE-2026-84196CWE-918ssrf

CVE-2026-84196

High · published September 1, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
27.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
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
EPSS
0.00354 · 27.8th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-09-01T16:17Z
References (2)
https://github.com/kyverno/kyverno/security/advisories/GHSA-qr4g-8hrp-c4rw · [email protected]https://www.vulncheck.com/advisories/kyverno-before-1.18.0-server-side-request-forgery-via-apicall · [email protected]
EPSS history
Timeline
  • 03 SEP 03:32Z
    EPSS moved — → 0%
    epss
  • 01 SEP 11:33Z
    Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
    cvelistv5