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Lychee CVE-2026-22784

MEDIUM
Incorrect Authorization (CWE-863)
2026-01-12 security-advisories@github.com
Authentication Bypass Lychee
4.3
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 16, 2026 - 18:39 vuln.today
Public exploit code
Patch released
Jan 16, 2026 - 18:39 nvd
Patch available
CVE Published
Jan 12, 2026 - 19:16 nvd
MEDIUM 4.3

DescriptionGitHub Advisory

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.

AnalysisAI

Lychee photo management tool versions before 7.1.0 contain an authorization bypass in the album password unlock mechanism that allows authenticated users to access multiple password-protected albums by unlocking just one that shares the same password. Public exploit code exists for this vulnerability. …

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Vulnerability AssessmentAI

Risk Assessment CVSS 4.3 (MEDIUM). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker without authentication could exploit this vulnerability to gain possibly unauthorized access to other users' password-protected albums.
Remediation A vendor patch is available — apply it immediately. … Detailed patch versions, workarounds, and compensating controls in full report.
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Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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CVE-2026-22784 vulnerability details – vuln.today
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