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CVE-2026-27111— Kargo has Missing Authorization Vulnerabilities in Approval & Promotion REST API Endpoints

Quick assessment

Affected
akuity kargo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

kargo是Akuity开源的一个持续交付工具。 Kargo 1.9.0版本至1.9.2版本存在安全漏洞，该漏洞源于REST API中三个端点缺少授权检查，可能导致绕过预期的授权边界。

AI Predicted 7.5 Difficulty: Easy EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-27111

Vulnerability Information
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Vulnerability Title
Kargo has Missing Authorization Vulnerabilities in Approval & Promotion REST API Endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
kargo 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kargo是Akuity开源的一个持续交付工具。 Kargo 1.9.0版本至1.9.2版本存在安全漏洞，该漏洞源于REST API中三个端点缺少授权检查，可能导致绕过预期的授权边界。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
akuity kargo >= 1.9.0, < 1.9.3 -

II. Public POCs for CVE-2026-27111

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III. Intelligence Information for CVE-2026-27111

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Patches & Fixes for CVE-2026-27111 (1)

Vendor Advisories for CVE-2026-27111 (1)

IV. Related Vulnerabilities

Same product: kargo
Same vendor: akuity
Same weakness: CWE-862