Description
Cap-go capgo.app before 12.267.1 fails to validate target API key privilege during rotation, allowing an apikey_manager to rotate a higher-privileged org_super_admin sibling key and recover its plaintext credential. Attackers with apikey_manager role can enumerate same-owner API keys, rotate a stronger sibling through the PUT endpoint, and obtain the replacement plaintext secret to authenticate as the higher-privileged principal.
Published: 2026-09-26
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: Privilege Escalation via API Key Rotation
Action: Immediate Patch
AI Analysis

Impact

The vulnerability is a failure to validate the privilege level of a target API key during rotation. An account that holds the apikey_manager role can rotate a sibling key that has higher privileges, recover the plain‑text credential of that key, and use it to authenticate as the higher‑privileged org_super_admin principal. This allows an attacker to assume an authority level far beyond what the original role permits, enabling full control over organizational resources, data, and configuration.

Affected Systems

Cap‑go capgo.app deployments that use any version prior to 12.267.1 are impacted. The issue is specific to the API key rotation functionality exposed through the PUT endpoint in those releases. All installations still running those versions should be considered vulnerable.

Risk and Exploitability

The flaw carries a CVSS score of 8.7, classifying it as High severity. The EPSS score is not available, so the exact exploitation likelihood cannot be quantified from the available data, but the lack of this score does not mitigate the risk posed by an attacker who already has apikey_manager privileges. The vulnerability is not listed in the CISA KEV catalog. Exploitation requires an attacker to be authenticated with the apikey_manager role, after which they can perform the rotation through the exposed API endpoint, retrieve the higher‑privileged key, and elevate their privileges.

Generated by OpenCVE AI on September 26, 2026 at 14:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Cap‑go capgo.app release (12.267.1 or newer) immediately to eliminate the privilege validation flaw.
  • Revoke the apikey_manager role from all accounts that do not require it for legitimate administrative tasks, ensuring that only trusted administrators retain this capability.
  • Implement monitoring or logging for the API key rotation endpoint and investigate any unauthorized rotation attempts by apikey_manager accounts.

Generated by OpenCVE AI on September 26, 2026 at 14:51 UTC.

Tracking

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Advisories

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History

Sat, 26 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Description Cap-go capgo.app before 12.267.1 fails to validate target API key privilege during rotation, allowing an apikey_manager to rotate a higher-privileged org_super_admin sibling key and recover its plaintext credential. Attackers with apikey_manager role can enumerate same-owner API keys, rotate a stronger sibling through the PUT endpoint, and obtain the replacement plaintext secret to authenticate as the higher-privileged principal.
Title Cap-go capgo.app before 12.267.1 Privilege Escalation via API Key Rotation
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-26T13:22:56.128Z

Reserved: 2026-09-26T02:30:34.353Z

Link: CVE-2026-100615

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-26T14:16:42.193

Modified: 2026-09-26T14:16:42.193

Link: CVE-2026-100615

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-26T15:00:14Z

Weaknesses
  • CWE-269

    Improper Privilege Management