Immich through 3.3.1 Missing Authorization in Partner Sync Exposes Locked Folder Metadata

Advisories

Immich through 3.3.1 Missing Authorization in Partner Sync Exposes Locked Folder Metadata

severity: medium
date: 10/10/2026
Affecting: immich <= 3.3.1
CVE: CVE-2026-108165
CWE: CWE-862 Missing Authorization
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References: https://hackmd.io/@haind/immich-partner-sync-locked-metadata
https://github.com/immich-app/immich/blob/db6e11ecc851228aec9c525abb0ee026d1f5055e/server/src/repositories/sync.repository.ts#L662-L722
https://github.com/immich-app/immich/blob/db6e11ecc851228aec9c525abb0ee026d1f5055e/server/src/repositories/access.repository.ts#L207-L228
https://github.com/immich-app/immich
Credit: HaiND from the Post and Telecommunication Institute of Technology
Description: Immich through 3.3.1 contains a missing authorization vulnerability in the partner synchronization stream that allows authenticated partners to read Locked Folder asset metadata because sync queries do not exclude Locked visibility. Attackers with an active partner relationship can call POST /api/sync/stream with PartnerAssetsV2 and PartnerAssetExifsV1 types to obtain GPS coordinates, capture times, descriptions and camera details.

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