---
title: "CVE-2026-45625: Arcane Backend: Missing admin authorization on git repository endpoints allows non-admin users to exfiltrate stored Git credentials and tamper with GitOps configs"
url: https://erroneo.us/security/cve/CVE-2026-45625/
description: "CVE-2026-45625 (github.com/getarcaneapp/arcane/backend (Go)): Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-29
date_modified: 2026-06-09
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-45625"
kev: false
cvss: 9.9
epss: 0.00524
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-45625: Arcane Backend: Missing admin authorization on git repository endpoints allows non-admin users to exfiltrate stored Git credentials and tamper with GitOps configs

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 44: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 44% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes github.com/getarcaneapp/arcane/backend (Go) <= 1.18.1, fixed in 1.19.0 . Check your lockfile, including transitive dependencies.

## What it is

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 1.19.0, Arcane's huma-based REST API exposes nine endpoints under /api/customize/git-repositories and /api/git-repositories/sync for managing GitOps source repositories and their stored credentials. Eight of those endpoints (list, create, get, update, delete, test, listBranches, browseFiles) never call the checkAdmin(ctx) helper that every other admin-managed resource (container registries, environments, users, API keys, swarm, settings, system, notifications, events) uses, and the huma authentication middleware deliberately enforces only authentication, not the admin role. As a result, any logged-in user with the default user role can list, create, modify, delete, and test git repository configurations. By repointing an existing repository's URL to an attacker-controlled host while omitting the token/sshKey fields (which UpdateRepository only rewrites when explicitly supplied), the attacker causes Arcane to decrypt the legitimate PAT/SSH key on its next /test, /branches, or /files call and present it as HTTP Basic auth (or SSH key auth) to the attacker's host — producing a one-step exfiltration of plaintext Git credentials. This vulnerability is fixed in 1.19.0.

## Affected packages

- Go `github.com/getarcaneapp/arcane/backend` <= 1.18.1 → fixed: 1.19.0

## Affected products (CVE record)

- getarcaneapp arcane: < 1.19.0

## Severity

- GitHub_M CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.52% probability of exploitation activity in the next 30 days; percentile 44.

## Sources

- [GitHub Advisory GHSA-7h26-hg47-p9hx](https://github.com/advisories/GHSA-7h26-hg47-p9hx)
- [CVE.org record CVE-2026-45625](https://www.cve.org/CVERecord?id=CVE-2026-45625)
- [NVD entry CVE-2026-45625](https://nvd.nist.gov/vuln/detail/CVE-2026-45625)
- [github.com](https://github.com/getarcaneapp/arcane/security/advisories/GHSA-7h26-hg47-p9hx)

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Source page: https://erroneo.us/security/cve/CVE-2026-45625/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt