Read the docs
TI-2026-75556 Aliases CVE-2026-96626

Credential exfiltration in Arcane via registry URL repointing

Priority LOW 36CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

Arcane, an interface for managing Docker containers, images, networks, and volumes, is affected before 2.5.0. The UpdateRegistry flow lets the registry URL change while keeping the stored encrypted token, so a later connection test sends that token to a host the attacker controls (CWE-522). An attacker who holds registry update and test permissions can expose the stored container-registry token or password and may gain access to or tamper with images.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00216 12th percentileScored 2026-11-07
Fix Fixed arcane (getarcaneapp): 2.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
getarcaneapparcanebefore 2.5.02.5.0Patch availableCNA
  • arcane Vendorgetarcaneapp Affected before 2.5.0 Fixed in 2.5.0 Patch available CNA

Remediation

Upgrade Arcane to version 2.5.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA arcane (getarcaneapp) Fixed in 2.5.0

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-96626
  2. 2026-10-18 Priority changed: MEDIUM → LOW
  3. 2026-10-28 CISA SSVC decision points changed

References

Other 4

  • TI-2026-33369 Missing authorization in getarcaneapp arcane CVSS 3.1CRITICAL 9.9
  • TI-2026-75557 Arcane users with delegated permission can take over admin accounts CVSS 3.1HIGH 8.8
  • TI-2026-34717 Arcane: Missing admin authorization on global variables endpoint CVSS 3.1HIGH 8.8
  • TI-2026-33371 Arcane: Unauthenticated reflected XSS via SVG color parameter in /api/app-images/logo enables admin account takeover CVSS 3.1HIGH 8.2
  • TI-2026-34768 Arcane: Authenticated Arbitrary Host File Read via Docker Compose Include Directives in Arcane CVSS 3.1HIGH 7.7
  • TI-2026-58913 Arcane before 2.0.0 Missing Administrator Authorization on the Compose Template Mutation Endpoints CVSS 4.0HIGH 7.1
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences