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Vulnerability Details :

CVE-2025-55205

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-18 Aug, 2025 | 16:28
Updated At-18 Aug, 2025 | 17:39
Rejected At-
Credits

Capsule tenant owners with "patch namespace" permission can hijack system namespaces label

Capsule is a multi-tenancy and policy-based framework for Kubernetes. A namespace label injection vulnerability in Capsule v0.10.3 and earlier allows authenticated tenant users to inject arbitrary labels into system namespaces (kube-system, default, capsule-system), bypassing multi-tenant isolation and potentially accessing cross-tenant resources through TenantResource selectors. This vulnerability enables privilege escalation and violates the fundamental security boundaries that Capsule is designed to enforce. This vulnerability is fixed in 0.10.4.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:18 Aug, 2025 | 16:28
Updated At:18 Aug, 2025 | 17:39
Rejected At:
▼CVE Numbering Authority (CNA)
Capsule tenant owners with "patch namespace" permission can hijack system namespaces label

Capsule is a multi-tenancy and policy-based framework for Kubernetes. A namespace label injection vulnerability in Capsule v0.10.3 and earlier allows authenticated tenant users to inject arbitrary labels into system namespaces (kube-system, default, capsule-system), bypassing multi-tenant isolation and potentially accessing cross-tenant resources through TenantResource selectors. This vulnerability enables privilege escalation and violates the fundamental security boundaries that Capsule is designed to enforce. This vulnerability is fixed in 0.10.4.

Affected Products
Vendor
projectcapsule
Product
capsule
Versions
Affected
  • < 0.10.4
Problem Types
TypeCWE IDDescription
CWECWE-863CWE-863: Incorrect Authorization
Type: CWE
CWE ID: CWE-863
Description: CWE-863: Incorrect Authorization
Metrics
VersionBase scoreBase severityVector
3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/projectcapsule/capsule/security/advisories/GHSA-fcpm-6mxq-m5vv
x_refsource_CONFIRM
https://github.com/projectcapsule/capsule/commit/e1f47feade6e1695b2204407607d07c3b3994f6e
x_refsource_MISC
Hyperlink: https://github.com/projectcapsule/capsule/security/advisories/GHSA-fcpm-6mxq-m5vv
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/projectcapsule/capsule/commit/e1f47feade6e1695b2204407607d07c3b3994f6e
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:18 Aug, 2025 | 17:15
Updated At:18 Aug, 2025 | 20:16

Capsule is a multi-tenancy and policy-based framework for Kubernetes. A namespace label injection vulnerability in Capsule v0.10.3 and earlier allows authenticated tenant users to inject arbitrary labels into system namespaces (kube-system, default, capsule-system), bypassing multi-tenant isolation and potentially accessing cross-tenant resources through TenantResource selectors. This vulnerability enables privilege escalation and violates the fundamental security boundaries that Capsule is designed to enforce. This vulnerability is fixed in 0.10.4.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.19.0CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.0
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-863Primarysecurity-advisories@github.com
CWE ID: CWE-863
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/projectcapsule/capsule/commit/e1f47feade6e1695b2204407607d07c3b3994f6esecurity-advisories@github.com
N/A
https://github.com/projectcapsule/capsule/security/advisories/GHSA-fcpm-6mxq-m5vvsecurity-advisories@github.com
N/A
Hyperlink: https://github.com/projectcapsule/capsule/commit/e1f47feade6e1695b2204407607d07c3b3994f6e
Source: security-advisories@github.com
Resource: N/A
Hyperlink: https://github.com/projectcapsule/capsule/security/advisories/GHSA-fcpm-6mxq-m5vv
Source: security-advisories@github.com
Resource: N/A

Change History

0
Information is not available yet

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ShareView Details
Matching Score-6
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EPSS-0.16% / 37.02%
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Capsule tenant owner with "patch namespace" permission can hijack system namespaces

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Action-Not Available
Vendor-projectcapsuleprojectcapsuleclastix
Product-capsulecapsulecapsule
CWE ID-CWE-863
Incorrect Authorization
CVE-2024-38002
Matching Score-4
Assigner-Liferay, Inc.
ShareView Details
Matching Score-4
Assigner-Liferay, Inc.
CVSS Score-9||CRITICAL
EPSS-0.36% / 57.66%
||
7 Day CHG~0.00%
Published-22 Oct, 2024 | 15:12
Updated-22 Aug, 2025 | 03:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The workflow component in Liferay Portal 7.3.2 through 7.4.3.111, and Liferay DXP 2023.Q4.0 through 2023.Q4.5, 2023.Q3.1 through 2023.Q3.8, 7.4 GA through update 92 and 7.3 GA through update 36 does not properly check user permissions before updating a workflow definition, which allows remote authenticated users to modify workflow definitions and execute arbitrary code (RCE) via the headless API.

Action-Not Available
Vendor-Liferay Inc.
Product-digital_experience_platformliferay_portalDXPPortalportaldxp
CWE ID-CWE-863
Incorrect Authorization
Details not found