CVE-2026-45625: CWE-862: Missing Authorization in getarcaneapp arcane
CVE-2026-45625 is a critical authorization vulnerability in Arcane versions prior to 1. 19. 0. The huma-based REST API exposes several GitOps repository management endpoints that do not enforce admin role checks, allowing any authenticated user with a default role to manipulate Git repository configurations. This flaw enables an attacker to repoint a repository URL to a malicious host and trigger Arcane to send decrypted Git credentials (PAT/SSH keys) to the attacker, resulting in credential exfiltration. The vulnerability has a CVSS score of 9. 9 and is fixed in version 1. 19. 0.
AI Analysis
Technical Summary
Arcane's REST API prior to version 1.19.0 contains a missing authorization check (CWE-862) on eight endpoints related to GitOps source repository management. These endpoints do not invoke the checkAdmin(ctx) helper, which is used elsewhere to enforce admin-only access. Consequently, any logged-in user with default privileges can list, create, update, delete, and test Git repository configurations. By manipulating the repository URL to point to an attacker-controlled server and omitting token or SSH key fields, the attacker causes Arcane to decrypt and send legitimate credentials to the attacker’s host during certain API calls, effectively exfiltrating plaintext Git credentials. This vulnerability is resolved in Arcane version 1.19.0.
Potential Impact
An attacker with any authenticated user role can exploit this vulnerability to gain unauthorized administrative control over GitOps repository configurations. This includes the ability to exfiltrate plaintext Git credentials (personal access tokens or SSH keys) by redirecting repository URLs to attacker-controlled hosts. The impact includes complete confidentiality, integrity, and availability compromise of affected Git repository credentials, potentially leading to further compromise of source code and related infrastructure.
Mitigation Recommendations
This vulnerability is fixed in Arcane version 1.19.0. Users should upgrade to version 1.19.0 or later to remediate this issue. No official patch or temporary fix is indicated other than upgrading. Until upgrading, restrict access to the Arcane API to trusted users only and monitor for suspicious repository URL changes. Patch status is not explicitly confirmed beyond the version fix; check the vendor advisory for the latest remediation guidance.
CVE-2026-45625: CWE-862: Missing Authorization in getarcaneapp arcane
Description
CVE-2026-45625 is a critical authorization vulnerability in Arcane versions prior to 1. 19. 0. The huma-based REST API exposes several GitOps repository management endpoints that do not enforce admin role checks, allowing any authenticated user with a default role to manipulate Git repository configurations. This flaw enables an attacker to repoint a repository URL to a malicious host and trigger Arcane to send decrypted Git credentials (PAT/SSH keys) to the attacker, resulting in credential exfiltration. The vulnerability has a CVSS score of 9. 9 and is fixed in version 1. 19. 0.
CVSS v3.1
Score 9.9critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Arcane's REST API prior to version 1.19.0 contains a missing authorization check (CWE-862) on eight endpoints related to GitOps source repository management. These endpoints do not invoke the checkAdmin(ctx) helper, which is used elsewhere to enforce admin-only access. Consequently, any logged-in user with default privileges can list, create, update, delete, and test Git repository configurations. By manipulating the repository URL to point to an attacker-controlled server and omitting token or SSH key fields, the attacker causes Arcane to decrypt and send legitimate credentials to the attacker’s host during certain API calls, effectively exfiltrating plaintext Git credentials. This vulnerability is resolved in Arcane version 1.19.0.
Potential Impact
An attacker with any authenticated user role can exploit this vulnerability to gain unauthorized administrative control over GitOps repository configurations. This includes the ability to exfiltrate plaintext Git credentials (personal access tokens or SSH keys) by redirecting repository URLs to attacker-controlled hosts. The impact includes complete confidentiality, integrity, and availability compromise of affected Git repository credentials, potentially leading to further compromise of source code and related infrastructure.
Mitigation Recommendations
This vulnerability is fixed in Arcane version 1.19.0. Users should upgrade to version 1.19.0 or later to remediate this issue. No official patch or temporary fix is indicated other than upgrading. Until upgrading, restrict access to the Arcane API to trusted users only and monitor for suspicious repository URL changes. Patch status is not explicitly confirmed beyond the version fix; check the vendor advisory for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-12T20:31:43.449Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a19cdf2e29bf47b50fb4708
Added to database: 5/29/2026, 5:33:38 PM
Last enriched: 5/29/2026, 5:49:58 PM
Last updated: 5/29/2026, 7:20:25 PM
Views: 3
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