CVE-2026-84196Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
kyverno kyverno kyverno:kyverno (from the name) | before 1.18.0; 1.18.0 not affected | CNA record |
References
- https://github.com/kyverno/kyverno/security/advisories/GHSA-qr4g-8hrp-c4rwvendor-advisory
- https://www.vulncheck.com/advisories/kyverno-before-1.18.0-server-side-request-forgery-via-apicallthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.