Kargo: Privilege escalation via Project RBAC management in the Kargo API

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-61850
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-30 20:17:11 UTC
Updated2026-11-05 03:17:29 UTC
DescriptionKargo manages and automates the promotion of software artifacts. From 0.6.0 until 1.8.14, 1.9.9, and 1.10.8, two authorization flaws in the `project-scoped RBAC API` let an authenticated user with delegated permission to manage a Project's `Roles` or `ServiceAccounts` confer permissions exceeding the user's own. A user authorized to edit `Roles` can create, replace, or add rules granting permissions not held by the user; a user authorized to edit a Role's ServiceAccount can bind an identity, including the user's own, to a more powerful Role. A Kargo Role comprises a `ServiceAccount, Role, and RoleBinding` in the Project namespace. Changes are written using the API server's broadly privileged credentials after only a coarse resource-kind edit check, rather than checking each permission being conferred. This permits escalation to Project-administrator access, disclosure of `Project Secrets` and credentials, and modification or deletion of Project resources. Stolen Git, container-registry, or Helm-registry credentials can extend confidentiality and integrity impacts to those external systems. Escalation remains limited to Projects where the attacker already has RBAC-management delegation and does not itself grant cluster-wide or cross-Project access. Default non-administrator roles do not permit these operations; exploitation requires an `administrator-created custom role` granting the relevant permissions and control of an account assigned that role. This issue is fixed in versions 1.8.14, 1.9.9, and 1.10.8.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/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

EPSS: 0.003590000 probability, percentile 0.296960000 (date 2026-11-02)

Problem Types: CWE-269 | CWE-269 CWE-269: Improper Privilege Management

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/E:X/C...
4.0CNADECLARED9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
High
Sub Integrity
High
Sub Availability
Low

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Akuity Kargo affected >= 0.6.0, < 1.8.14 Not specified
CNA Akuity Kargo affected >= 1.9.0-rc.1, < 1.9.9 Not specified
CNA Akuity Kargo affected >= 1.10.0-rc.1, < 1.10.8 Not specified

References

ReferenceSourceLinkTags
github.com/akuity/kargo/releases/tag/v1.8.14 [email protected] github.com
github.com/akuity/kargo/commit/50d29c10153965114f903645c83eadbe7bf58d3f [email protected] github.com
github.com/akuity/kargo/commit/5ab7c4216a4151f55ea8ef9ff3b9f884dd322578 [email protected] github.com
github.com/akuity/kargo/releases/tag/v1.9.9 [email protected] github.com
github.com/akuity/kargo/security/advisories/GHSA-wp4p-hr79-q4g8 [email protected] github.com
github.com/akuity/kargo/releases/tag/v1.11.0-rc.1 [email protected] github.com
github.com/akuity/kargo/releases/tag/v1.10.8 [email protected] github.com
github.com/akuity/kargo/commit/72fadd3600b35e6dce67042eb686720a48b45fa3 [email protected] github.com
github.com/akuity/kargo/commit/19639678811b486bddb014dabb25397771f3941e [email protected] github.com
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