Vulnerability · Published Oct 16, 2026 · Assigned by GitHub_M

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

High 8.5

In plain English

A high-severity information exposure in arcane from getarcaneapp. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)8.5High

Exploit odds (30 days)0.2%top 87.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
getarcaneapp	arcane	< 2.5.0

Weakness: CWE-200, CWE-522 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

References

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