Kargo
CVE-2026-27111
MEDIUM
GHSA-5vvm-67pj-72g4
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS 5.0 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to compromise the affected system. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Kargo versions 1.9.0 through 1.9.2 fail to enforce the custom "promote" authorization verb in three REST API endpoints, allowing authenticated users with standard Kubernetes RBAC permissions to trigger promotions without the intended fine-grained access controls. An attacker with patch permissions on freight status or create permissions on promotions can bypass promotion pipeline restrictions and advance software artifacts unauthorized. A patch is available to restore the missing authorization checks.
Earlier versions of this analysis (1)
Kargo manages and automates the promotion of software artifacts. From v1.9.0 to v1.9.2, Kargo's authorization model includes a promote verb -- a non-standard Kubernetes "dolphin verb" -- that gates the ability to advance Freight through a promotion pipeline. [CVSS 5.0 MEDIUM]
RemediationAI
A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in go
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-862 (Missing Authorization). Affects Kargo. Kargo manages and automates the promotion of software artifacts. From v1.9.0 to v1.9.2, Kargo's authorization model includes a promote verb -- a non-standard Kubernetes "dolphin verb" -- that gates the ability to advance Freight through a promotion pipeline. This verb exists to separate the ability to manage promotion-related resources from the ability to trigger promotions, enabling fine-grained access control over what is often a sensitive operation. The promote verb is correctly enforced in K
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
Kargo manages and automates the promotion of software artifacts. From v1.9.0 to v1.9.2, Kargo's authorization model includes a promote verb -- a non-standard Kubernetes "dolphin verb" -- that gates the ability to advance Freight through a promotion pipeline. This verb exists to separate the ability to manage promotion-related resources from the ability to trigger promotions, enabling fine-grained access control over what is often a sensitive operation. The promote verb is correctly enforced in Kargo's legacy gRPC API. However, three endpoints in the newer REST API omit this check, relying only on standard Kubernetes RBAC for the underlying resource operations (patch on freights/status or create on promotions). This permits users who hold those standard permissions -- but who were deliberately not granted promote -- to bypass the intended authorization boundary. The affected endpoints are /v1beta1/projects/{project}/freight/{freight}/approve, /v1beta1/projects/{project}/stages/{stage}/promotions, and /v1beta1/projects/{project}/stages/{stage}/promotions/downstream. This vulnerability is fixed in v1.9.3.
Executive ViewAI
CVE-2026-27111 presents moderate security risk, a missing authorization vulnerability rated CVSS 5.0. Attackers could gain access beyond their authorized level. A patch is available and should be applied during regular vulnerability management.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Affected Products (CPE)GitHub Advisory
Authorization bypass in Kargo Kubernetes promotion tool from 1.7.0 before 1.7.8/1.8.11/1.9.3. Batch resource creation by
Privilege escalation in Kargo versions from 0.6.0 before 1.8.14, 1.9.9, and 1.10.8 lets an authenticated user with a del
Kargo's GetConfig() API endpoint fails to validate Bearer token authenticity, allowing unauthenticated attackers to retr
Open redirect vulnerability in Kargo UI OIDC login flow allows unauthenticated remote attackers to redirect users to arb
Kargo versions 1.4.0-1.6.3, 1.7.0-1.7.8, 1.8.0-1.8.11, and 1.9.0-1.9.4 contain a Server-Side Request Forgery vulnerabili
Same weakness CWE-862 – Missing Authorization
View allVendor StatusVendor
SUSE
Severity: Low| Product | Status |
|---|---|
| openSUSE Leap 15.6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.5 | Fixed |
Exploit-DB