Vulnerability details
CVE-2026-122310
kyverno kyverno
Kyverno 1.19.1 before 1.19.2 Privilege Escalation via Policy apiCall urlPath
CVSS 4.0
9.4Critical
Official description
Kyverno from 1.19.1 before 1.19.2 validates a Policy's context.apiCall urlPath after cleaning it but executes the raw path, whose fragment or query the Kubernetes client discards. A namespace-scoped user who can create a Policy can hide ../ segments behind # or ? to reach cluster-scoped endpoints with Kyverno's ServiceAccount, gaining cluster admin.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.4Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
| 9.9Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| kyverno | kyverno | 1.19.1 ≤ v < 1.19.2 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-11-05
- Last updated
- 2026-11-09
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 22 · Low
Exploit prediction (EPSS)
0.35%
Probability of exploitation in 30 days
29.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-436Interpretation Conflict