CVE-2026-56241

Capgo - RBAC Demotion Privilege Retention via Stale org_users.user_right

Published Jul 12, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed

Description

Capgo before 12.128.2 contains a privilege escalation vulnerability where demoted super_admin users retain access to delete_non_compliant_bundles and count_non_compliant_bundles RPCs due to stale org_users.user_right column not being cleared during role binding deletion. Attackers can exploit this by maintaining a previously granted super_admin role to enumerate and bulk delete non-compliant bundles across the entire organization indefinitely.

Analysis

Technical impact

Capgo before version 12.128.2 has a privilege escalation flaw that allows a user who has been demoted from the super_admin role to retain access to the delete_non_compliant_bundles and count_non_compliant_bundles RPCs. This occurs because the org_users.user_right column is not cleared when a role binding is deleted, leaving stale privileges. As a result, an attacker can continuously enumerate and bulk delete non‑compliant bundles across the organization.

Affected Systems

The vulnerability affects Capgo installations that run any version earlier than 12.128.2. It specifically impacts the Capgo application hosted under the Capgo:Capgo product line.

Risk and Exploitability

The CVSS score of 7.2 reflects moderate to high risk. The EPSS score of < 1% indicates a very low probability of exploitation in the wild, and the vulnerability is not listedV catalog. The likely attack vector requires an account that has been demoted from super_admin but still retains legacy rights. An attacker can leverage these stale privileges to enumerate and bulk delete non‑compliant bundles across the organization, compromising data integrity.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Capgo

unaffected

Version	Status	Constraints
`0`	affected	< 12.128.2
`12.128.2`	unaffected	—

No data.

Vendor Product Versions

Cap-go

Version	Status	Scheme	Platform
`[0,12.128.2)`	affected	semver	—
`[12.128.2,*]`	unaffected	semver	—

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

Upgrade Capgo to version 12.128.2 or later to apply the fix that clears stale org_users.user_right entries when role bindings are deleted.
For environments that cannot update immediately, identify users whose super_admin role was revoked and clear their org_users.user_right values manually or reassign roles to properly remove legacy privileges, ensuring they no longer have access to delete_non_compliant_bundles or count_non_compliant_bundles RPCs.
Restrict or disable the delete_non_compliant_bundles and count_non_compliant_bundles RPCs for non‑super_admin users through configuration or role adjustments, and monitor audit logs for unauthorized usage.

Generated by OpenCVE AI on August 1, 2026 at 11:11 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.264% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/Cap-go/capgo/security/advisories/GHSA-rvvc-rvxv-qcrh
https://www.vulncheck.com/advisories/capgo-rbac-demotion-privilege-retention-via-stale-org-users-user-right

History

Jul 15, 2026 4:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Jul 13, 2026 2:45 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cap-go Cap-go cap-go
Vendors & Products		Cap-go Cap-go cap-go

Jul 12, 2026 12:15 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Capgo before 12.128.2 contains a privilege escalation vulnerability where demoted super_admin users retain access to delete_non_compliant_bundles and count_non_compliant_bundles RPCs due to stale org_users.user_right column not being cleared during role binding deletion. Attackers can exploit this by maintaining a previously granted super_admin role to enumerate and bulk delete non-compliant bundles across the entire organization indefinitely.
Title		Capgo - RBAC Demotion Privilege Retention via Stale org_users.user_right
Weaknesses		CWE-285
References		https://github.com/Cap-go/capgo/security/advisories/GHSA-rvvc-rvxv-qcrh https://www.vulncheck.com/advisories/capgo-rbac-demotion-privilege-retention-via-stale-org-users-user-right
Metrics		cvssV3_1 `{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H'}` cvssV4_0 `{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N'}`