CVE-2026-4789 identifies a critical Server-Side Request Forgery (SSRF) vulnerability in Kyverno versions 1.16.0 and later, caused by unrestricted CEL HTTP functions. Rated 9.8 Critical, this flaw allows an unauthenticated attacker to remotely execute arbitrary requests with low attack complexity, potentially leading to a complete compromise of confidentiality, integrity, and availability. Despite its severe impact, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.16.0, <= 1.17.1CPE matchmatch criteria | cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.