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CVE-2026-59258— immich < 3.0.3 Shared Album Editor Ownership Takeover via updateUser

Quick assessment

Affected
immich-app immich
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

immich是Immich团队开源的一个高性能自托管照片和视频管理解决方案。 immich-app immich 3.0.3之前版本存在授权问题漏洞，该漏洞源于PUT /albums/:id/user/:userId端点存在访问控制失效，允许共享专辑编辑者修改成员角色，可能导致具有编辑权限的攻击者将专辑所有者降级为编辑并自提升为所有者，从而获得包括删除和驱逐能力的完全控制。

CVSS 8.3 · High EPSS 0.46% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
immich-app immich < 3.0.3 affected
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I. Basic Information for CVE-2026-59258

Vulnerability Information
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Vulnerability Title
immich < 3.0.3 Shared Album Editor Ownership Takeover via updateUser
Source: CVE Program / CVE List V5
Vulnerability Description
immich before 3.0.3 contains a broken access control vulnerability in the PUT /albums/:id/user/:userId endpoint that allows shared album editors to modify member roles without owner-only restrictions. Attackers with editor access can demote the album owner to editor and promote themselves to owner in sequential requests, gaining full control including deletion and eviction capabilities.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
immich-app immich 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
immich是Immich团队开源的一个高性能自托管照片和视频管理解决方案。 immich-app immich 3.0.3之前版本存在授权问题漏洞，该漏洞源于PUT /albums/:id/user/:userId端点存在访问控制失效，允许共享专辑编辑者修改成员角色，可能导致具有编辑权限的攻击者将专辑所有者降级为编辑并自提升为所有者，从而获得包括删除和驱逐能力的完全控制。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
immich-app immich 0 ~ 3.0.3 -

II. Public POCs for CVE-2026-59258

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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Qwen3.6-35B-A3B · 12174 chars
Pro+ exclusive includes:
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POC zip download
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III. Intelligence Information for CVE-2026-59258

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Patches & Fixes for CVE-2026-59258 (2)

Vendor Advisories for CVE-2026-59258 (1)

Vendor Pages for CVE-2026-59258 (1)

Other References for CVE-2026-59258 (1)

IV. Related Vulnerabilities

Same product: immich
Same vendor: immich-app
Same weakness: CWE-863

V. Comments for CVE-2026-59258

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