What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-16 · updated 2026-10-28
• Weakness: CWE-200

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.

Affected products

• getarcaneapp arcane: before 2.5.0

References

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

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