Improperly configured permissions in Sealos
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.
Summary
Sealos is an open source cloud operating system distribution based on the Kubernetes kernel. In versions of Sealos prior to 4.2.1-rc4 an improper configuration of role based access control (RBAC) permissions resulted in an attacker being able to obtain cluster control permissions, which could control the entire cluster deployed with Sealos, as well as hundreds of pods and other resources within the cluster. This issue has been addressed in version 4.2.1-rc4. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| labring | sealos | before 4.2.1-rc4 | 4.2.1-rc4 | Patch available | CNA |
| — | github.com/labring/sealos (Go) | before 4.2.1-rc4 | 4.2.1-rc4 | Patch available | GHSA-74j8-w7f9-pp62 |
- sealos Vendorlabring Affected before 4.2.1-rc4 Fixed in 4.2.1-rc4 Patch available CNA
- github.com/labring/sealos (Go) Vendor— Affected before 4.2.1-rc4 Fixed in 4.2.1-rc4 Patch available GHSA-74j8-w7f9-pp62
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:sealos_project:sealos:*:*:*:*:*:*:*:* | before 4.2.1 | Vulnerable | Sealos Project |
| cpe:2.3:o:sealos_project:sealos:4.2.1:rc1:*:*:*:*:*:* | 4.2.1 rc1 | Vulnerable | Sealos Project |
| cpe:2.3:o:sealos_project:sealos:4.2.1:rc2:*:*:*:*:*:* | 4.2.1 rc2 | Vulnerable | Sealos Project |
| cpe:2.3:o:sealos_project:sealos:4.2.1:rc3:*:*:*:*:*:* | 4.2.1 rc3 | Vulnerable | Sealos Project |
- cpe:2.3:o:sealos_project:sealos:*:*:*:*:*:*:*:* Versions before 4.2.1 Vulnerable ·Sealos Project
- cpe:2.3:o:sealos_project:sealos:4.2.1:rc1:*:*:*:*:*:* Versions 4.2.1 rc1 Vulnerable ·Sealos Project
- cpe:2.3:o:sealos_project:sealos:4.2.1:rc2:*:*:*:*:*:* Versions 4.2.1 rc2 Vulnerable ·Sealos Project
- cpe:2.3:o:sealos_project:sealos:4.2.1:rc3:*:*:*:*:*:* Versions 4.2.1 rc3 Vulnerable ·Sealos Project
Remediation
- Fix · CNA sealos (labring) Fixed in 4.2.1-rc4
- Fix · GHSA-74j8-w7f9-pp62 github.com/labring/sealos (Go) Fixed in 4.2.1-rc4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33190
- 2026-10-03 Alias added: GHSA-74j8-w7f9-pp62
References
More labring vulnerabilities
- TI-2026-30610 FastGPT: Unauthenticated Remote Code Execution (RCE) via code-server Misconfiguration in agent-sandbox CVSS 3.1CRITICAL 9.8
- TI-2026-48466 FastGPT: Unauthenticated WeChat channel hijack and denial of service via shareId-only authorization CVSS 4.0CRITICAL 9.3
- TI-2026-44161 FastGPT: Unauthenticated cross-tenant data access via forgeable plugin-invoke JWT (default INVOKE_TOKEN_SECRET='token') CVSS 4.0HIGH 8.8
- TI-2026-44148 Incorrect authorization in labring FastGPT CVSS 3.1HIGH 7.7
- TI-2026-39440 FastGPT: SSRF in HTTP-tool OpenAPI schema importer via SwaggerParser $ref (bypasses the isInternalAddress guard) CVSS 3.1HIGH 7.7
- TI-2026-30646 FastGPT: Uncontrolled Resource Consumption leading to Sandbox Exhaustion CVSS 4.0MEDIUM 6.3
Sources
- CVE-2023-33190 · CVE Program
- CVE-2023-33190 · NVD
- FIRST EPSS
- GHSA-74j8-w7f9-pp62 · GitHub Advisory Database · CC BY 4.0
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