CVE-2026-62284：OSAC operator 允許 Kubeconfig credential‑plugin 執行與 console proxy SSRF
CVE-2026-62284 - OSAC operator: Kubeconfig credential-plugin execution and SSRF in console proxy
OSAC operator 內的 console‑proxy 允許攻擊者以容器服務帳號執行任意程式並進行 SSRF。
- 漏洞影響：遠端與自動 VM 叢集模式（預設）受影響，僅 local 模式不受影響。
此漏洞使攻擊者能在 K8s 環境中以容器服務帳號執行任意程式，提醒使用者及時升級並限制 Secret 存取。
OSAC operator is a Kubernetes operator. In the affected revision identified as 8220502, the `console-proxy` `RemoteConfigResolver` parses Kubernetes Secret kubeconfig data with `clientcmd.RESTConfigFromKubeConfig` without sanitizing the resulting `rest.Config`. An attacker who can create or modify a Secret labeled `osac.openshift.io/remote-cluster-kubeconfig`: "true" in a namespace where the proxy's RoleBinding grants Secret read access can supply `users[].user.exec`. When `rest.TransportFor` builds the HTTP transport for an upstream WebSocket connection, client-go invokes that exec credential plugin, spawning an arbitrary process as the osac-`console-proxy` service account inside the pod. Attacker-controlled `clusters[].server` also enables server-side request forgery from the proxy pod. Remote and auto VM cluster modes are affected, with auto the default; exclusively `local` mode does not read kubeconfig Secrets and is unaffected. The credential-plugin execution path is patched in commit 7e4222b; that patch does not address the described server-address SSRF path.
Impact
Affected Products
The following products are affected by CVE-2026-62284
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
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are
affected, the information is not represented in the table below.
No affected product recoded yet
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | HIGH | [email protected] |
Update OSAC operator to patch arbitrary process execution and SSRF vulnerabilities.
- Update OSAC operator to the patched revision.
- Restrict access to Secrets with osac.openshift.io/remote-cluster-kubeconfig label.
- Validate RoleBindings for the console-proxy service account.
- Avoid remote and auto VM cluster modes if possible.
Here, you will find a curated list of external links that provide in-depth
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CVE-2026-62284.
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-62284 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification
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approaches employed by adversaries to exploit the CVE-2026-62284
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following table lists the changes that have been made to the
CVE-2026-62284 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
十月. 30, 2026
Action Type Old Value New Value Added Description OSAC operator is a Kubernetes operator. In the affected revision identified as 8220502, the `console-proxy` `RemoteConfigResolver` parses Kubernetes Secret kubeconfig data with `clientcmd.RESTConfigFromKubeConfig` without sanitizing the resulting `rest.Config`. An attacker who can create or modify a Secret labeled `osac.openshift.io/remote-cluster-kubeconfig`: "true" in a namespace where the proxy's RoleBinding grants Secret read access can supply `users[].user.exec`. When `rest.TransportFor` builds the HTTP transport for an upstream WebSocket connection, client-go invokes that exec credential plugin, spawning an arbitrary process as the osac-`console-proxy` service account inside the pod. Attacker-controlled `clusters[].server` also enables server-side request forgery from the proxy pod. Remote and auto VM cluster modes are affected, with auto the default; exclusively `local` mode does not read kubeconfig Secrets and is unaffected. The credential-plugin execution path is patched in commit 7e4222b; that patch does not address the described server-address SSRF path. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/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 Added CWE CWE-94 Added CWE CWE-918 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/62xxx/CVE-2026-62284.json">CVE-2026-62284</a> Added Reference https://github.com/osac-project/osac-operator/commit/7e4222b6ab465fc00606c8cfed980b226820cb1b Added Reference https://github.com/osac-project/osac-operator/commit/86466378aa3603253dca7fa2f59a2733af0dc092 Added Reference https://github.com/osac-project/osac-operator/pull/321 Added Reference https://github.com/osac-project/osac-operator/security/advisories/GHSA-5w5g-j6hw-6p8f
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.