CVE-2026-84196 Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
Authenticated users can exploit Kyverno's apiCall feature to perform Server-Side Request Forgery, accessing internal services and exfiltrating data via error messages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-84196?
CVE-2026-84196 is a high-severity server-side request forgery vulnerability in kyverno, published on 1 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-84196?
4 open source packages ship an affected version, including github.com/kyverno/kyverno and kyverno.
| Package | Affected | Fixed in |
|---|---|---|
github.com/kyverno/kyverno Go | All versions | None |
github.com/kyverno/kyverno Go | All versions to 1.17.1 | None |
github.com/kyverno/kyverno Go | All versions to 1.17.1 | None |
kyverno Bitnami | All versions | 1.18.0 |
How do I fix CVE-2026-84196?
Upgrade to a fixed version.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-84196 being exploited?
There is no known exploitation of CVE-2026-84196 in the wild and no public exploit code.
Sources
Also known as BIT-kyverno-2026-84196, GHSA-qr4g-8hrp-c4rw, GHSA-xcg3-vhqm-f4qw, GO-2026-5594, MINI-2m8g-mw45-3fh7, MINI-2xp7-c34q-8x29 and 22 more.