Auth bypass in Immich-App Immich
CVE-2026-59258
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Immich-App Immich — versions 0
Weakness classification (CWE)
References
- github.com/immich-app/immich/issues/29857 (issue-tracking, technical-description, exploit)
- github.com/immich-app/immich/releases/tag/v3.0.3 (release-notes)
- github.com/immich-app/immich/pull/29883 (issue-tracking, patch)
- github.com/immich-app/immich/commit/84dff19ca9a467752d848ff54763d62c04ebf960 (patch)
- www.vulncheck.com/advisories/immich-shared-album-editor-ownership-takeover-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-59258?
- CVE-2026-59258 is a high-severity vulnerability in Immich-App Immich, classified under Incorrect Authorization. CVSS score: 8.3/10. Published 2026-07-15.
- How severe is CVE-2026-59258?
- High severity. CVSS v3 base score is 8.3 out of 10.