CVE-2026-100706

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-100706
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100706.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-100706
Aliases
  • GHSA-5qq8-67g6-4h2w
Published
2026-09-26T13:24:00Z
Modified
2026-09-27T11:30:45Z
Severity
  • 9.4 (Critical) CVSS_V4 - 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 CVSS Calculator
Summary
kyverno before 1.19.1 Privilege Escalation via Policy apiCall urlPath
Details

kyverno before 1.19.1 fails to properly validate URL-encoded path segments in Policy apiCall urlPath, allowing namespace tenants to bypass the per-namespace clamp and create objects in other namespaces as the admission-controller ServiceAccount. Attackers can exploit this by using percent-encoded directory traversal sequences to create MutatingWebhookConfiguration objects cluster-wide or PolicyException objects in the kyverno namespace, enabling privilege escalation to cluster admin.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-441"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100706.json"
}
References

Affected packages

Git / github.com/kyverno/kyverno

Affected ranges

Type
GIT
Repo
https://github.com/kyverno/kyverno
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
40ec788d48bb28d83dbf85538e962a59db9d45c6
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.19.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

1.*
1.3.0-rc10
1.6-dev
1.7-dev
1.8-dev
1.9-dev
helm-chart-v2.*
helm-chart-v2.0.3
helm-chart-v2.0.3-rc1
helm-chart-v2.0.3-rc2
helm-chart-v2.1.0
helm-chart-v2.1.3
kyverno-chart-3.*
kyverno-chart-3.9.0
kyverno-chart-3.9.0-rc.1
kyverno-chart-3.9.0-rc.2
kyverno-chart-3.9.0-rc.3
kyverno-chart-3.9.0-rc.4
kyverno-policies-chart-3.*
kyverno-policies-chart-3.9.0
kyverno-policies-chart-3.9.0-rc.1
kyverno-policies-chart-3.9.0-rc.2
kyverno-policies-chart-3.9.0-rc.3
kyverno-policies-chart-3.9.0-rc.4
Other
test-dev
v0.*
v0.1.0
v0.10.0
v0.11.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.7.0
v0.7.1
v0.8.0
v0.9.0
v0.9.1
v1.*
v1.0.0
v1.0.0-rc1
v1.1.1
v1.1.10
v1.1.11
v1.1.12
v1.1.2
v1.1.3
v1.1.3-rc1
v1.1.4
v1.1.4-rc1
v1.1.5
v1.1.6
v1.1.6-rc1
v1.1.6-rc2
v1.1.6-rc3
v1.1.6-rc4
v1.1.6-rc5
v1.1.7
v1.1.7-rc1
v1.1.7-rc2
v1.1.7-rc3
v1.1.7-rc4
v1.1.8
v1.1.9
v1.19.0
v1.19.0-rc.1
v1.19.0-rc.2
v1.19.0-rc.3
v1.19.0-rc.4
v1.19.1-rc.1
v1.2.0
v1.2.1
v1.3.0
v1.3.0-rc1
v1.3.0-rc10
v1.3.0-rc11
v1.3.0-rc12
v1.3.0-rc2
v1.3.0-rc3
v1.3.0-rc4
v1.3.0-rc5
v1.3.0-rc6
v1.3.0-rc7
v1.3.0-rc8
v1.3.0-rc9
v1.3.1
v1.3.2
v1.3.2-rc1
v1.3.2-rc2
v1.3.2-rc3
v1.3.3
v1.3.4
v1.3.4-rc1
v1.3.5
v1.3.5-rc1
v1.3.5-rc2
v1.3.5-rc3
v1.3.5-rc4
v1.3.5-rc5
v1.3.6
v1.3.6-rc1
v1.3.6-rc2
v1.3.6-rc3
v1.3.6-rc4
v1.3.6-rc5
v1.4.0
v1.4.0-rc1
v1.4.0-rc2
v1.4.0-rc3
v1.4.0-rc4
v1.4.1
v1.4.2
v1.4.2-rc1
v1.4.2-rc2
v1.4.2-rc3
v1.4.2-rc4
v1.4.3
v1.4.3-rc1
v1.4.3-rc2
v1.5.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100706.json"