CVE-2026-84196 json
Kyverno before 1.18.0 Server-Side Request Forgery via apiCall
published 2026-04-14 6 mo ago modified 2026-09-25 44 d ago also BIT-kyverno-2026-84196 , EUVD-2026-69033 , GHSA-qr4g-8hrp-c4rw , GO-2026-5594
- cvss
- 7.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
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.
Patch / fix
- bitnami kyverno 1.18.0
- kyverno kyverno 1.18.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-84196 updated cvss 7.7
github.com/kyverno/kyverno: Kyverno: Server-Side Request Forgery via apiCall.service.url allows information disclosure.
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| GitHub | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| CNA | 4.0 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/kyverno/kyverno | <=1.17.1 all versions |
no fix listed |
| bitnami | kyverno | <1.18.0 |
1.18.0 |
Affected products
- kyverno kyverno
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/kyverno/kyverno/security/advisories/GHSA-qr4g-8hrp-c4rw
vendor-advisory, web, advisory
-
vulncheck.com
/advisories/kyverno-before-1.18.0-server-side-request-forgery-via-apicall
third-party-advisory, web
-
github.com
/kyverno/kyverno
package
-
nvd.nist.gov
/vuln/detail/CVE-2026-84196
web
Sources
- CVE List CVE-2026-84196
- GitHub Advisory GHSA-qr4g-8hrp-c4rw
- NVD CVE-2026-84196
- OSV BIT-kyverno-2026-84196
- OSV GO-2026-5594
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.