Auth bypass in Lycheeorg Lychee
CVE-2026-22784
Lychee is a free, open-source photo-management tool. Prior to 7.1.0, an authorization vulnerability exists in Lychee's album password unlock functionality that allows users to gain possibly unauthorized access to other users' password-protected albums. When a user unlocks a password-protected public album, the system automatically unlocks ALL other public albums that share the same password, resulting in a complete authorization bypass. This vulnerability is fixed in 7.1.0.
Vulnerability class: Broken Access Control
EPSS: 0.002 (14.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Lycheeorg Lychee — versions < 7.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-22784?
- CVE-2026-22784 is a medium-severity vulnerability in Lycheeorg Lychee, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-01-12.
- How severe is CVE-2026-22784?
- Medium severity. CVSS v3 base score is 4.3 out of 10.