CVE-2026-84195
Kyverno before 1.16.4 Credential Leak via apiCall
- State
- Published
- Severity
- 8.3 High
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Reserved
- Sep 1, 2026
Description
Kyverno before 1.16.4 automatically attaches the admission controller's ServiceAccount token to outbound HTTP requests in apiCall service mode without explicit authorization headers. Attackers can exfiltrate the token by directing apiCall requests to external or attacker-controlled endpoints, gaining full control over Kyverno policies and cluster resources.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.3 High | 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 | VulnCheck |
| 3.1 | 7.7 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Affected Products
| Product | Versions |
|---|---|
kyvernokyverno |
|
References
- GitHub Security Advisory (GHSA-8wfp-579w-6r25)vendor-advisory
- VulnCheck Advisory: Kyverno before 1.16.4 Credential Leak via apiCallthird-party-advisory
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