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

> Shared album editors can escalate privileges to owner, gaining full control over albums including deletion and member eviction.

- **Severity:** High 7.2 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jul 2026
- **Updated:** 17 Sep 2026
- **Also known as:** GHSA-mxpm-jvrh-gcj5

## What is CVE-2026-59258?

CVE-2026-59258 is a high-severity missing authorization vulnerability in immich-app immich, published on 15 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2026-59258?


## How do I fix CVE-2026-59258?

No fix has been published for CVE-2026-59258 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-59258 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59258 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-59258 and fix it if it is affected.

What it is: CVE-2026-59258 is a high-severity missing authorization vulnerability in immich-app immich, published on 15 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-59258 exists.

Affected product: immich-app immich. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-59258/ (Markdown: https://insights.sbomify.com/CVE-2026-59258/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-59258
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-59258
- OSV: https://osv.dev/vulnerability/CVE-2026-59258

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-59258/
Summaries are generated and may contain mistakes; the official description above is the record.